کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2835915 1164357 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mitochondrial sequence diversity of the southernmost extant New World monkey, Alouatta caraya
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Mitochondrial sequence diversity of the southernmost extant New World monkey, Alouatta caraya
چکیده انگلیسی

Variability in mitochondrial DNA sequences was analyzed in the howler monkey, Alouatta caraya, in order to delineate evolutionary relationships among populations in the most southerly distributed New World monkey. Based on new and previously published sequence data, fourteen cytochrome b haplotypes were observed among 33 howlers sampled in Argentina, Paraguay and Brazil, and grouped in two main haplogroups. In northeastern Argentina and southern Paraguay, new sequence data on 73 specimens sampled from six localities gave 34 control region haplotypes that also clustered in two main haplogroups. At this southern distribution, both mitochondrial markers revealed the presence of two sympatric and differentiated clades that we interpret to be the consequence of a secondary contact between previously allopatric populations. Given evidence for a demographic expansion at the beginning of the Holocene 15,500–7000 years ago (Fu’s test, FS = −12.137; P < 0.001), we suggest that atleast two populations of A. caraya have colonized the southernmost range since the Holocene employing forested corridors on the Paraná and Paraguay Rivers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 43, Issue 1, April 2007, Pages 202–215
نویسندگان
, , , ,