کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5920697 1164303 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bidirectional introgressive hybridization between Lepus capensis and Lepus yarkandensis
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Bidirectional introgressive hybridization between Lepus capensis and Lepus yarkandensis
چکیده انگلیسی

Lepus capensis and Lepus yarkandensis are two well-established hare species with different habitat preferences and obvious morphological distinctions. L. capensis is common and widespread while L. yarkandensis is an endemic species with a restricted distribution in the Tarim Basin of western China. During field sampling, individuals with a distinct phenotype were found in the contact zone between the two species. To understand the origin of these unclassified individuals, we analyzed morphological and genetic data from 700 individuals including L. yarkandensis, L. capensis and the unclassified individuals. Morphological analyses of the unclassified individuals revealed that they lie between L. yarkandensis and L. capensis. Genetic analyses based on species-specific molecular markers (mitochondrial control region and SRY) showed that the unclassified populations have mtDNA and SRY genes from both L. capensis and L. yarkandensis, suggesting that the unclassified populations result from hybridization between the two species. Interestingly, many identical and/or very similar mtDNA haplotypes were shared between L. capensis populations and L. yarkandensis populations close to their contact zones, which further suggests the existence of extensive bidirectional mtDNA introgression. Similarly, we found evidence for SRY introgression, though it existed at a lower level compared to mtDNA introgression.

Highlights► Lepus capensis and Lepus yarkandensis show bidirectional gene introgression. ► The introgressed haplotypes present restricted spatial distribution. ► The SRY gene shows a reduced level of introgression compared to the mtDNA.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 59, Issue 3, June 2011, Pages 545-555
نویسندگان
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