Kriukov A P, Suzuki H
Institute of Biology and Soil Sciences, Russian Academy of Sciences, Vladivostok, Russia.
Genetika. 2000 Aug;36(8):1111-8.
Distribution of mitochondrial DNA cytochrome b gene haplotypes in two crow species was examined by means of sequencing of the 336-bp gene fragment. The topology of the NJ and UPGMA trees showed that the carrion crow range was split into two parts due to the presence of significantly diverged ancestral lineage localized in the southeastern part of the range. The carrion crow populations, inhabiting a territory ranging from France to northern Sakhalin, along with interspersed hooded crow populations and hybrid Siberian populations, shared a common haplotype. The border between two carrion crow lineages revealed is located in central Sakhalin. The subdivision of two weakly differentiated lineages within the jungle crown range, also observed within this territory, coincided with the subspecies division of this species. The estimated genetic distances indicate the isolation of the subgenus Coloeus. These data also suggest the convergent similarity between the chough Pyrrhocorax pyrrhocorax and the Corvus genus, as well as the conspecificity of Corvus corone corone and C. c. cornix.
通过对336个碱基对的基因片段进行测序，研究了两种乌鸦线粒体DNA细胞色素b基因单倍型的分布情况。NJ树和UPGMA树的拓扑结构表明，由于在该分布范围东南部存在明显分化的祖先谱系，食腐鸦的分布范围被分成了两部分。分布在从法国到萨哈林岛北部地区的食腐鸦种群，与散布其间的寒鸦种群以及杂交的西伯利亚种群共享一种常见单倍型。所揭示的两种食腐鸦谱系之间的边界位于萨哈林岛中部。在该区域内也观察到，丛林鸦分布范围内两个分化较弱的谱系的细分与该物种的亚种划分相吻合。估计的遗传距离表明了冠鸦亚属的隔离。这些数据还表明红嘴山鸦与鸦属之间存在趋同相似性，以及小嘴乌鸦指名亚种和小嘴乌鸦东方亚种的同种性。
