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• {"link"=>{"url"=>"http://www.citeulike.org/user/Archaeogenetics/article/2324725"}, "post_time"=>"2008-02-03 03:34:11", "tag"=>["g", "i-m26", "nuraghic", "paleolithic", "sardinia", "y"], "linkout"=>[{"type"=>"DOI", "url"=>"http://dx.doi.org/10.1371/journal.pone.0001430"}, {"type"=>"Pubmed", "url"=>"http://view.ncbi.nlm.nih.gov/pubmed/18183308"}, {"type"=>"Hubmed", "url"=>"http://www.hubmed.org/display.cgi?uids=18183308"}], "username"=>"Archaeogenetics", "article_id"=>"2324725"}

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{"title"=>"Y-chromosome based evidence for pre-neolithic origin of the genetically homogeneous but diverse Sardinian population: Inference for association scans", "type"=>"journal", "authors"=>[{"first_name"=>"Daniela", "last_name"=>"Contu", "scopus_author_id"=>"7801377085"}, {"first_name"=>"Laura", "last_name"=>"Morelli", "scopus_author_id"=>"7005954536"}, {"first_name"=>"Federico", "last_name"=>"Santoni", "scopus_author_id"=>"55348710600"}, {"first_name"=>"Jamie W.", "last_name"=>"Foster", "scopus_author_id"=>"57198337085"}, {"first_name"=>"Paolo", "last_name"=>"Francalacci", "scopus_author_id"=>"6602869869"}, {"first_name"=>"Francesco", "last_name"=>"Cucca", "scopus_author_id"=>"55029470000"}], "year"=>2008, "source"=>"PLoS ONE", "identifiers"=>{"isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "sgr"=>"38949113705", "doi"=>"10.1371/journal.pone.0001430", "pui"=>"351223222", "scopus"=>"2-s2.0-38949113705", "issn"=>"19326203", "pmid"=>"18183308"}, "id"=>"aa632595-0c3c-3079-85fa-c1e2c0f5a323", "abstract"=>"The island of Sardinia shows a unique high incidence of several autoimmune diseases with multifactorial inheritance, particularly type 1 diabetes and multiple sclerosis. The prior knowledge of the genetic structure of this population is fundamental to establish the optimal design for association studies in these diseases. Previous work suggested that the Sardinians are a relatively homogenous population, but some reports were contradictory and data were largely based on variants subject to selection. For an unbiased assessment of genetic structure, we studied a combination of neutral Y-chromosome variants, 21 biallelic and 8 short tandem repeats (STRs) in 930 Sardinian males. We found a high degree of interindividual variation but a homogenous distribution of the detected variability in samples from three separate regions of the island. One haplogroup, I-M26, is rare or absent outside Sardinia and is very common (0.37 frequency) throughout the island, consistent with a founder effect. A Bayesian full likelihood analysis (BATWING) indicated that the time from the most recent common ancestor (TMRCA) of I-M26, was 21.0 (16.0-25.5) thousand years ago (KYA) and that the population began to expand 14.0 (7.8-22.0) KYA. These results suggest a largely pre-Neolithic settlement of the island with little subsequent gene flow from outside populations. Consequently, Sardinia is an especially attractive venue for case-control genome wide association scans in common multifactorial diseases. Concomitantly, the high degree of interindividual variation in the current population facilitates fine mapping efforts to pinpoint the aetiologic polymorphisms.", "link"=>"http://www.mendeley.com/research/ychromosome-based-evidence-preneolithic-origin-genetically-homogeneous-diverse-sardinian-population", "reader_count"=>42, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>11, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>11, "Student > Postgraduate"=>1, "Other"=>4, "Student > Master"=>2, "Student > Bachelor"=>4, "Professor"=>5}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>11, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>11, "Student > Postgraduate"=>1, "Other"=>4, "Student > Master"=>2, "Student > Bachelor"=>4, "Professor"=>5}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Biochemistry, Genetics and Molecular Biology"=>7, "Agricultural and Biological Sciences"=>27, "Medicine and Dentistry"=>2, "Arts and Humanities"=>1, "Psychology"=>2, "Computer Science"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>2}, "Psychology"=>{"Psychology"=>2}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>27}, "Computer Science"=>{"Computer Science"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>7}, "Unspecified"=>{"Unspecified"=>2}, "Arts and Humanities"=>{"Arts and Humanities"=>1}}, "reader_count_by_country"=>{"United States"=>1, "Italy"=>1, "Mexico"=>1, "United Kingdom"=>1, "Spain"=>1}, "group_count"=>2}

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• http://doi.org/10.1002/ajhb.22497
• http://doi.org/10.1007/s10048-020-00618-1
• http://doi.org/10.1038/ejhg.2008.120
• http://doi.org/10.1016/j.clim.2013.03.007
• http://doi.org/10.1038/srep41614
• http://doi.org/10.1016/j.jneuroling.2011.11.003
• http://doi.org/10.1111/age.12106
• http://doi.org/10.1038/gene.2011.33
• http://doi.org/10.1007/s00415-013-7151-4
• http://doi.org/10.1186/s13104-015-1130-z
• http://doi.org/10.1016/j.ajhg.2009.05.004
• http://doi.org/10.1002/elps.201300210
• http://doi.org/10.1371/journal.pone.0004654
• http://doi.org/10.1089/vim.2015.0035
• http://doi.org/10.1016/j.fsigen.2014.11.019
• http://doi.org/10.1038/ncomms4513
• http://doi.org/10.1093/bioinformatics/btq367
• http://doi.org/10.1111/j.1399-0004.2011.01668.x
• http://doi.org/10.1038/ejhg.2012.65
• http://doi.org/10.3390/ijms20225763
• http://doi.org/10.1002/ajhb.22773
• http://doi.org/10.1038/s41588-018-0215-8
• http://doi.org/10.1002/ajhb.21024
• http://doi.org/10.1002/ajpa.23278
• http://doi.org/10.1016/j.jchb.2010.09.002
• http://doi.org/10.1016/j.ejmg.2009.05.002
• http://doi.org/10.1371/journal.pone.0200641
• http://doi.org/10.1093/molbev/msp292
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• http://doi.org/10.1038/ejhg.2012.22
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• http://doi.org/10.1038/srep42869
• http://doi.org/10.1590/S1415-47572011000200003
• http://doi.org/10.1093/molbev/mss091
• http://doi.org/10.1371/journal.pone.0190169
• http://doi.org/10.1371/journal.pbio.1000285
• http://doi.org/10.1484/J.RPH.1.117810
• http://doi.org/10.1007/s10048-014-0425-x
• http://doi.org/10.1371/journal.pone.0179474
• http://doi.org/10.1016/j.fsigen.2018.03.008

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• {"type"=>"COMMENT", "annotationUri"=>"info:doi/10.1371/annotation/8362a0d8-deb5-44b8-8688-a1f682a6ed2b", "title"=>"Excellent Insight", "body"=>"Well-designed and written study! I question one or two genotyping assignments (which impacted the TMRCA estimate for R-M18) and some of model parameters for BATWING, but overall the conclusions seem sound and helpful.", "isRemoved"=>false, "created"=>"2008-01-11T17:05:43Z", "lastModified"=>"2008-01-11T17:05:43Z", "creator"=>{"userId"=>"158465"}, "highlightedText"=>"", "competingInterestStatement"=>{"creatorWasPrompted"=>false, "hasCompetingInterests"=>false}, "parentArticle"=>{"doi"=>"info:doi/10.1371/journal.pone.0001430", "state"=>"published", "journals"=>{"PLoSONE"=>{"journalKey"=>"PLoSONE", "eIssn"=>"1932-6203", "title"=>"PLOS ONE"}}}, "replyTreeSize"=>0, "mostRecentActivity"=>"2008-01-11T17:05:43Z", "replies"=>[]}
• {"type"=>"COMMENT", "annotationUri"=>"info:doi/10.1371/annotation/c5a412da-db49-4481-8e61-d66f3932eab1", "title"=>"Referee comments: Referee 1", "body"=>"Referee 1's review:\n\nThis is an interesting paper which examines Y chromosome haplotypes in three separate regions of the island of Sardinia. The authors note that there is a high degree of interindividual variation but a homogenous distribution of the detected variability in samples from the three separate regions. One haplogroup, I-M26, is rare or absent outside Sardinia and is very common (0.37 frequency) throughout the island, consistent with a founder effect. A Bayesian full likelihood analysis has indicated that the time from the most recent common ancestor of I-M26, is 21.0 (16.0-25.5) KYA and that the population began to expand 14.0 (7.8-22.0) KYA. These results suggest a largely pre-Neolithic settlement of the island with little subsequent gene flow from outside populations. The authors conclude that Sardinia is thus, an especially attractive venue for case-control whole genome association scans in common multifactorial diseases.\n\nSpecific comments are as follows:\n\n1) The authors should define KYA when they first mention it for readers who do not understand what it means.\n\n2) I am not sure if Nuraghe are a strong argument for a common cultural background of the peoples of Sardinia. Admittedly, they are present all over the island and not anywhere else in neighboring countries. Castles are found all over Europe, but one would likely not say that Europe had a common cultural background at their time of construction; they were built because each group saw their strategic value when facing an opponent with them and thus they propagated throughout the surrounding region. The presence of Nuraghe all over Sardinia could be the result of mimicry by rival tribes on Sardinia, but their absence elsewhere would support their creattion in Sardinia. Additional arguments should be provided to support this assertion.\n\n3) On page 11, paragraph 2, the authors state that due to the presence of Y chromosome haplotypes from eastern and western Europe, analysis in the Sardinians would have a high chance of detecting common disease variants present in other European populations. This argument needs to be hedged, as it is reliant upon the fact that these disease variants arose prior to the populating of Sardinia. Due to their isolation for ~4000 years, and major population expansion in the last 300 years, which will encompass the majority of the historical meiotic events from which common variants can arise, one may find that different risk variants arose in the Sardinian population compared to the rest of Europe, although admittedly it is expected that there will be some variants that do predate the peopling of Sardinia. The question will be: what risk is attributable to those historical variants compared to the more recent variants.\n\n4) The authors state on page 11, paragraph 2, that the Sardinian population has highly informative haplotype splits across the genome. This statement cannot be made based upon their results from their data on the Y chromosome alone, but the authors do not provide the source of data that leads them to draw this conclusion. Is this inferred from data from studies by other groups or these investigators? This statement needs to be backed up by one or more references.\n\n5) The UPGMA tree presented in Figure 2 should be redrawn using the consensus of 1000 bootstraps and the appropriate bootstrap confidence of each branch shown in the figure. This will give the reader an appreciation of the confidence of the pattern that the tree presents.\n\n----------\nN.B. These are the general comments made by the reviewer when reviewing this paper in light of which the manuscript was revised. Specific points addressed during revision of the paper are not shown.", "isRemoved"=>false, "created"=>"2008-01-11T17:21:29Z", "lastModified"=>"2008-01-11T17:21:29Z", "creator"=>{"userId"=>"80539"}, "highlightedText"=>"", "competingInterestStatement"=>{"creatorWasPrompted"=>false, "hasCompetingInterests"=>false}, "parentArticle"=>{"doi"=>"info:doi/10.1371/journal.pone.0001430", "state"=>"published", "journals"=>{"PLoSONE"=>{"journalKey"=>"PLoSONE", "eIssn"=>"1932-6203", "title"=>"PLOS ONE"}}}, "replyTreeSize"=>0, "mostRecentActivity"=>"2008-01-11T17:21:29Z", "replies"=>[]}
• {"type"=>"COMMENT", "annotationUri"=>"info:doi/10.1371/annotation/482f766b-943f-4416-b928-543bf3230590", "title"=>"Probably Genotyping Error affects TMRCA calculation", "body"=>"I did notice, however, what appears to be a genotyping error in haplogroup R-M18. One of the Cagliari haplotypes appears to have been classified as R-M18 when it should have been classified as R-M269.\n \nThis haplotype does not match any of the other seven haplotypes at five of the eight reported STRs, yet matches the majority allele for R-M269 at seven of the eight STRs. In a UPGMA phylogeny constructed using the haplotypes from this paper, it also clustered with R-M269 in all of the trees.\n\nIncluding this R-M269 haplotype in the R-M18 TMRCA calculation dramatically increases the STR variance, thus producing an errantly large TMRCA calculation.", "highlightedText"=>"''We also assessed the TMRCA for the rare Sardinia-specific R-M18 haplogroup, and obtained a value of 8.1 (7.8–10.5) KYA.''\nhttp://plosone.org/article/info:doi/10.1371/journal.pone.0001430#article1.body1.sec2.p5", "isRemoved"=>false, "created"=>"2008-02-08T00:53:45Z", "lastModified"=>"2008-02-08T00:53:45Z", "creator"=>{"userId"=>"158465"}, "competingInterestStatement"=>{"creatorWasPrompted"=>false, "hasCompetingInterests"=>false}, "parentArticle"=>{"doi"=>"info:doi/10.1371/journal.pone.0001430", "state"=>"published", "journals"=>{"PLoSONE"=>{"journalKey"=>"PLoSONE", "eIssn"=>"1932-6203", "title"=>"PLOS ONE"}}}, "replyTreeSize"=>0, "mostRecentActivity"=>"2008-02-08T00:53:45Z", "replies"=>[]}

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• {"title"=>"Haplogroup G-M406", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_G-M406", "timestamp"=>"2019-02-11T16:22:05Z"}
• {"title"=>"Haplogroup R-M269", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_R-M269", "timestamp"=>"2019-03-23T20:52:38Z"}
• {"title"=>"Haplogroup R1b", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_R1b", "timestamp"=>"2019-03-22T03:27:36Z"}
• {"title"=>"Haplogroup E-M123", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_E-M123", "timestamp"=>"2019-03-03T14:15:05Z"}
• {"title"=>"Haplogroup E-M215 (Y-DNA)", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_E-M215_(Y-DNA)", "timestamp"=>"2019-03-30T01:37:05Z"}
• {"title"=>"Haplogroup E-V68", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_E-V68", "timestamp"=>"2019-03-27T06:21:50Z"}
• {"title"=>"Haplogroup G (Y-DNA) by country", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_G_(Y-DNA)_by_country", "timestamp"=>"2019-02-19T13:23:04Z"}
• {"title"=>"Haplogroup T-M184", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_T-M184", "timestamp"=>"2019-03-20T19:05:35Z"}
• {"title"=>"Haplogroup T-L206 (Y-DNA)", "url"=>"http://en.wikipedia.org/wiki/Haplogroup_T-L206_(Y-DNA)", "timestamp"=>"2019-03-20T19:02:57Z"}

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Figshare

• {"files"=>["https://ndownloader.figshare.com/files/939635"], "description"=>"<p>Time is expressed in KYA (thousand years ago)</p><p>TMRCA = Time from the most common ancestor</p>", "links"=>[], "tags"=>["sardinian", "haplogroups", "batwing"], "article_id"=>610081, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.t004", "stats"=>{"downloads"=>1, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_TMRCA_values_of_the_main_Sardinian_haplogroups_provided_by_BATWING_analysis_/610081", "title"=>"TMRCA values of the main Sardinian haplogroups provided by BATWING analysis", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2008-01-09 00:01:21"}
• {"files"=>["https://ndownloader.figshare.com/files/939580"], "description"=>"<p>Numbers before forks indicate percentage of times that each group appeared in the input trees</p>", "links"=>[], "tags"=>["correlating", "european", "populations", "constructed", "1000", "pairwise"], "article_id"=>610019, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.g003", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_UPGMA_consensus_tree_correlating_European_populations_constructed_using_1000_R_ST_pairwise_distances_/610019", "title"=>"UPGMA consensus tree correlating European populations constructed using 1000 R_ST pairwise distances.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2008-01-09 00:00:19"}
• {"files"=>["https://ndownloader.figshare.com/files/939668"], "description"=>"<p>Conventional F_ST and R_ST values are shown below the diagonal. Corresponding P values with Significance Level = 0.05 are shown in italics above the diagonal.</p>", "links"=>[], "tags"=>["pairwise", "sardinian"], "article_id"=>610113, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.t002", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Population_pairwise_F_ST_and_R_ST_values_between_different_Sardinian_sub_regions_/610113", "title"=>"Population pairwise F_ST and R_ST values between different Sardinian sub-regions", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2008-01-09 00:01:53"}
• {"files"=>["https://ndownloader.figshare.com/files/939328"], "description"=>"<p>Expanded section shows the island of Sardinia with the sample regions highlighted</p>", "links"=>[], "tags"=>["mediterranean"], "article_id"=>609775, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.g001", "stats"=>{"downloads"=>2, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Map_of_Mediterranean_showing_the_location_of_Sardinia_/609775", "title"=>"Map of Mediterranean showing the location of Sardinia.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2008-01-09 02:42:55"}
• {"files"=>["https://ndownloader.figshare.com/files/462643", "https://ndownloader.figshare.com/files/462770", "https://ndownloader.figshare.com/files/462813", "https://ndownloader.figshare.com/files/462853", "https://ndownloader.figshare.com/files/462892", "https://ndownloader.figshare.com/files/462932"], "description"=>"<div><p>The island of Sardinia shows a unique high incidence of several autoimmune diseases with multifactorial inheritance, particularly type 1 diabetes and multiple sclerosis. The prior knowledge of the genetic structure of this population is fundamental to establish the optimal design for association studies in these diseases. Previous work suggested that the Sardinians are a relatively homogenous population, but some reports were contradictory and data were largely based on variants subject to selection. For an unbiased assessment of genetic structure, we studied a combination of neutral Y-chromosome variants, 21 biallelic and 8 short tandem repeats (STRs) in 930 Sardinian males. We found a high degree of interindividual variation but a homogenous distribution of the detected variability in samples from three separate regions of the island. One haplogroup, I-M26, is rare or absent outside Sardinia and is very common (0.37 frequency) throughout the island, consistent with a founder effect. A Bayesian full likelihood analysis (BATWING<em>)</em> indicated that the time from the most recent common ancestor (TMRCA) of I-M26, was 21.0 (16.0–25.5) thousand years ago (KYA) and that the population began to expand 14.0 (7.8–22.0) KYA. These results suggest a largely pre-Neolithic settlement of the island with little subsequent gene flow from outside populations. Consequently, Sardinia is an especially attractive venue for case-control genome wide association scans in common multifactorial diseases. Concomitantly, the high degree of interindividual variation in the current population facilitates fine mapping efforts to pinpoint the aetiologic polymorphisms.</p></div>", "links"=>[], "tags"=>["y-chromosome", "based", "pre-neolithic", "genetically", "homogeneous", "sardinian", "inference", "scans"], "article_id"=>151186, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0001430.s001", "https://dx.doi.org/10.1371/journal.pone.0001430.s002", "https://dx.doi.org/10.1371/journal.pone.0001430.s003", "https://dx.doi.org/10.1371/journal.pone.0001430.s004", "https://dx.doi.org/10.1371/journal.pone.0001430.s005", "https://dx.doi.org/10.1371/journal.pone.0001430.s006"], "stats"=>{"downloads"=>37, "page_views"=>48, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Y_Chromosome_Based_Evidence_for_Pre_Neolithic_Origin_of_the_Genetically_Homogeneous_but_Diverse_Sardinian_Population_Inference_for_Association_Scans/151186", "title"=>"Y-Chromosome Based Evidence for Pre-Neolithic Origin of the Genetically Homogeneous but Diverse Sardinian Population: Inference for Association Scans", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2008-01-09 00:19:46"}
• {"files"=>["https://ndownloader.figshare.com/files/939405"], "description"=>"<p>Numbers before forks indicate percentage of times that each group appeared in the input trees</p>", "links"=>[], "tags"=>["correlating", "european", "populations", "constructed", "1000", "pairwise"], "article_id"=>609848, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.g002", "stats"=>{"downloads"=>4, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_UPGMA_consensus_tree_correlating_European_populations_constructed_using_1000_F_ST_pairwise_distances_/609848", "title"=>"UPGMA consensus tree correlating European populations constructed using 1000 F_ST pairwise distances.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2008-01-09 02:44:08"}
• {"files"=>["https://ndownloader.figshare.com/files/939731"], "description"=>"<p>ND = not determined, SD = standard deviation</p>", "links"=>[], "tags"=>["frequencies", "y-chromosome", "lineages", "376", "newborns", "regions"], "article_id"=>610169, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.t001", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Haplotype_frequencies_and_gene_diversity_of_the_Y_chromosome_lineages_in_376_newborns_from_three_regions_of_Sardinia_/610169", "title"=>"Haplotype frequencies and gene diversity of the Y-chromosome lineages in 376 newborns from three regions of Sardinia", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2008-01-09 00:02:49"}
• {"files"=>["https://ndownloader.figshare.com/files/939695"], "description"=>"<p>ND = not determined, SD = standard deviation</p>", "links"=>[], "tags"=>["frequencies", "y-chromosome", "lineages", "930", "sardinian"], "article_id"=>610139, "categories"=>["Genetics"], "users"=>["Daniela Contu", "Laura Morelli", "Federico Santoni", "Jamie W. Foster", "Paolo Francalacci", "Francesco Cucca"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0001430.t003", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Haplotype_frequencies_of_the_Y_chromosome_lineages_and_gene_diversity_in_930_Sardinian_males_/610139", "title"=>"Haplotype frequencies of the Y-chromosome lineages and gene diversity in 930 Sardinian males", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2008-01-09 00:02:19"}

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Relative Metric

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F1000Prime