کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9143082 | 1164375 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Environmentally caused dwarfism or a valid species-Is Testudo weissingeri Bour, 1996 a distinct evolutionary lineage? New evidence from mitochondrial and nuclear genomic markers
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Environmentally caused dwarfism or a valid species-Is Testudo weissingeri Bour, 1996 a distinct evolutionary lineage? New evidence from mitochondrial and nuclear genomic markers Environmentally caused dwarfism or a valid species-Is Testudo weissingeri Bour, 1996 a distinct evolutionary lineage? New evidence from mitochondrial and nuclear genomic markers](/preview/png/9143082.png)
چکیده انگلیسی
We examine the evolutionary relationships of the five traditionally recognized species of the western Palearctic tortoise genus Testudo (T. graeca, T. hermanni, T. horsfieldii, T. kleinmanni, and T. marginata) and the newly described dwarfed species T. weissingeri by using sequence data of the mitochondrial cytochrome b gene and nuclear genomic fingerprints with inter-simple sequence repeats (ISSR). Testudo weissingeri differs from T. marginata mainly by its smaller size and some color-pattern characteristics. T. weissingeri lives in the driest, poorest and hottest part of the distributional range of T. marginata. While both data sets demonstrated phylogenetic distinctness of the five traditionally recognized species of Testudo, some subspecies and even some local populations, we detected no differentiation between T. marginata and T. weissingeri. We conclude that T. weissingeri is not a distinct evolutionary unit. We suggest that its small size is the result of suboptimal environmental conditions with limited resources and synonymize it with T. marginata. T. marginata and T. kleinmanni form a clade that is supported both by our mtDNA and nuclear genomic data sets. According to mtDNA data, this clade is the sister taxon to the T. graeca complex. A sister group relationship of T. hermanni and ((T. marginata + T. kleinmanni) + T. graeca) is moderately to weakly supported by mtDNA data; T. horsfieldii is the sister taxon to a clade comprising all other Testudo species.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 37, Issue 2, November 2005, Pages 389-401
Journal: Molecular Phylogenetics and Evolution - Volume 37, Issue 2, November 2005, Pages 389-401
نویسندگان
Uwe Fritz, Pavel Široký, Hajigholi Kami, Michael Wink,