دورية أكاديمية
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The genetic network of greater sage-grouse: Range-wide identification of keystone hubs of connectivity.

التفاصيل البيبلوغرافية
العنوان: The genetic network of greater sage-grouse: Range-wide identification of keystone hubs of connectivity.
المؤلفون: Cross TB; USDA Forest Service National Genomics Center for Wildlife and Fish Conservation Rocky Mountain Research Station Missoula Montana.; College of Forestry and Conservation University of Montana Missoula Montana., Schwartz MK; USDA Forest Service National Genomics Center for Wildlife and Fish Conservation Rocky Mountain Research Station Missoula Montana., Naugle DE; College of Forestry and Conservation University of Montana Missoula Montana., Fedy BC; School of Environment, Resources and Sustainability University of Waterloo Waterloo ON Canada., Row JR; School of Environment, Resources and Sustainability University of Waterloo Waterloo ON Canada., Oyler-McCance SJ; U.S. Geological Survey Fort Collins Science Center Fort Collins Colorado.
المصدر: Ecology and evolution [Ecol Evol] 2018 May 04; Vol. 8 (11), pp. 5394-5412. Date of Electronic Publication: 2018 May 04 (Print Publication: 2018).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Blackwell Pub. Ltd Country of Publication: England NLM ID: 101566408 Publication Model: eCollection Cited Medium: Print ISSN: 2045-7758 (Print) Linking ISSN: 20457758 NLM ISO Abbreviation: Ecol Evol Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: [Oxford] : Blackwell Pub. Ltd.
مستخلص: Genetic networks can characterize complex genetic relationships among groups of individuals, which can be used to rank nodes most important to the overall connectivity of the system. Ranking allows scarce resources to be guided toward nodes integral to connectivity. The greater sage-grouse ( Centrocercus urophasianus ) is a species of conservation concern that breeds on spatially discrete leks that must remain connected by genetic exchange for population persistence. We genotyped 5,950 individuals from 1,200 greater sage-grouse leks distributed across the entire species' geographic range. We found a small-world network composed of 458 nodes connected by 14,481 edges. This network was composed of hubs-that is, nodes facilitating gene flow across the network-and spokes-that is, nodes where connectivity is served by hubs. It is within these hubs that the greatest genetic diversity was housed. Using indices of network centrality, we identified hub nodes of greatest conservation importance. We also identified keystone nodes with elevated centrality despite low local population size. Hub and keystone nodes were found across the entire species' contiguous range, although nodes with elevated importance to network-wide connectivity were found more central: especially in northeastern, central, and southwestern Wyoming and eastern Idaho. Nodes among which genes are most readily exchanged were mostly located in Montana and northern Wyoming, as well as Utah and eastern Nevada. The loss of hub or keystone nodes could lead to the disintegration of the network into smaller, isolated subnetworks. Protecting both hub nodes and keystone nodes will conserve genetic diversity and should maintain network connections to ensure a resilient and viable population over time. Our analysis shows that network models can be used to model gene flow, offering insights into its pattern and process, with application to prioritizing landscapes for conservation.
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فهرسة مساهمة: Keywords: Centrocercus urophasianus; graph theory; multiscale conservation prioritization
تواريخ الأحداث: Date Created: 20180626 Latest Revision: 20230926
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC6010832
DOI: 10.1002/ece3.4056
PMID: 29938061
قاعدة البيانات: MEDLINE
الوصف
تدمد:2045-7758
DOI:10.1002/ece3.4056