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辉鹦鹉属物种的首个完整线粒体基因组——基于摩氏辉鹦鹉和岩辉鹦鹉物种间杂交对同种性的疑问

The first complete mitochondrial genome of Pyrrhura sp.--question about conspecificity in the light of hybridization between Pyrrhura molinae and Pyrrhura rupicola species.

作者信息

Urantowka Adam Dawid, Strzała Tomasz, Grabowski Krzysztof Aleksander

机构信息

a Department of Genetics , Wrocław University of Environmental and Life Sciences , Wrocław , Poland.

出版信息

Mitochondrial DNA A DNA Mapp Seq Anal. 2016;27(1):471-3. doi: 10.3109/19401736.2014.900672. Epub 2014 Mar 24.

Abstract

The genus Pyrrhura contains at least 24 species widespread mainly through South America. Pyrrhura molinae (Green-cheeked Conure) and Pyrrhura rupicola (Black-capped Conure) are treated as separate species based on morphological differences. Geographical ranges of these two species overlap in southern Peru. However, it is not clear if they occur there sympatrically or it is a hybridization zone. Some taxonomists conjecture their conspecific character, as possible hybrid individuals have been found in Puno region. We sequenced mitochondrial genome of specimen with phenotype typical for P. molinae. To confirm its species belonging, we aligned CYTB and control region (CR) sequences with adequate sequences of 21 Pyrrhura species. Surprisingly, analyzed P. molinae individual grouped together with two different individuals of P. rupicola species. Such incompatibility of genetic data with morphology may be only the result of these two species hybridization.

摘要

派翁尼斯鹦鹉属至少包含24个物种,主要分布在南美洲。基于形态差异,绿颊锥尾鹦鹉(Pyrrhura molinae)和黑帽锥尾鹦鹉(Pyrrhura rupicola)被视为不同的物种。这两个物种的地理分布范围在秘鲁南部重叠。然而,尚不清楚它们在那里是同域分布还是杂交区域。一些分类学家推测它们具有同种特征,因为在普诺地区发现了可能的杂交个体。我们对具有典型绿颊锥尾鹦鹉表型的标本进行了线粒体基因组测序。为了确认其物种归属,我们将CYTB和控制区(CR)序列与21种派翁尼斯鹦鹉的相应序列进行了比对。令人惊讶的是,分析的绿颊锥尾鹦鹉个体与黑帽锥尾鹦鹉物种的两个不同个体聚在一起。遗传数据与形态学的这种不匹配可能仅仅是这两个物种杂交的结果。

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