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Population genetic structures of two ecologically distinct species Betula platyphylla and B. ermanii inferred based on nuclear and chloroplast DNA markers

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العنوان: Population genetic structures of two ecologically distinct species Betula platyphylla and B. ermanii inferred based on nuclear and chloroplast DNA markers
المؤلفون: Hua‐Ying Wang, Xiao Yin, Dong‐Xu Yin, Lin Li, Hong‐Xing Xiao
المصدر: Ecology and Evolution, Vol 9, Iss 19, Pp 11406-11419 (2019)
بيانات النشر: Wiley, 2019.
سنة النشر: 2019
المجموعة: LCC:Ecology
مصطلحات موضوعية: birch, G3PDH, LGM, Northeast China, refuge, Ecology, QH540-549.5
الوصف: Abstract Climatic oscillations during the last glacial maximum (LGM) significantly affected the distribution patterns and genetic structure of extant plants. Northeast China (NEC) is a major biodiversity center in East Asia, and the influence of historical climate change on NEC populations is critical for understanding species responses to future climate change. However, only a few phylogeographic studies of cool temperate deciduous tree species have been conducted in the area, and results are inconsistent for species with different niches or distribution areas. We employed multiple chloroplast and nuclear markers to investigate the genetic structure of two ecologically contrasting species, Betula platyphylla and B. ermanii, in NEC. Rare haplotypes were identified in the chloroplast genome of these species, and both exhibited high levels of nucleotide diversity based on a fragment of the nuclear gene G3PDH and microsatellites. Moreover, significant phylogeographic structure was detected for B. platyphylla, suggesting that these populations had recolonized from independent glacial refuges, whereas no genetic structure was found for B. ermanii. OPEN RESEARCH BADGES The nSSR datasets used in the current study and the table of pairwise FST (below diagonal) and its standardized F'ST (above diagonal) among 25 populations based on seven SSRs are available from the Dryad (DOI: https://doi.org/10.5061/dryad.230d176). Sequences generated from this study were deposited in GenBank under Accession nos. KY199568–KY200162 and MK819541–MK819970.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2045-7758
16946553
Relation: https://doaj.org/toc/2045-7758
DOI: 10.1002/ece3.5643
URL الوصول: https://doaj.org/article/dae8617b6ba040d8959bef169465532e
رقم الأكسشن: edsdoj.8617b6ba040d8959bef169465532e
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20457758
16946553
DOI:10.1002/ece3.5643