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首页> 外文期刊>Journal of genetics >Mitochondrial DNA sequence variation in Drosophilid species (Diptera: Drosophilidae) along altitudinal gradient from Central Himalayan region of India
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Mitochondrial DNA sequence variation in Drosophilid species (Diptera: Drosophilidae) along altitudinal gradient from Central Himalayan region of India

机译：印度喜马拉雅中部地区果蝇物种（双翅目：果蝇科）的线粒体DNA序列沿海拔梯度的变化。

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摘要

Central Himalayan region of India encompasses varied ecological habitats ranging from near tropics to the mid-elevation forests dominated by cool-temperate taxa. In past, we have reported several new records and novel species from Uttarakhand state of India. Here, we assessed genetic variations in three mitochondrial genes, namely, 16S rRNA, cytochrome c oxidase subunit I and cytochrome c oxidase subunit II (COI and COII) in 26 drosophilid species collected along altitudinal transect from 550 to 2700 m above mean sea level. In the present study, overall 543 sequences were generated, 82 for 16S rRNA, 238 for COI, 223 for COII with 21, 47 and 45 mitochondrial haplotypes for 16S rRNA, COI and COII genes, respectively. Almost all species were represented by 2-3 unique mitochondrial haplotypes, depicting a significant impact of environmental heterogeneity along altitudinal gradient on genetic diversity. Also for the first time, molecular data of some rare species like Drosophila mukteshwarensis, Liodrosophila nitida, Lordiphosa parantillaria, Lordiphosa ayarpathaensis, Scaptomyza himalayana, Scaptomyza tistai, Zaprionus grandis and Stegana minuta are provided to public domains through this study.
机译：印度的喜马拉雅中部地区涵盖各种生态栖息地，范围从热带地区到以凉爽的生物类群为主的中海拔森林。过去，我们已经报道了印度北阿坎德邦的一些新记录和新物种。在这里，我们评估了沿平均海拔550至2700 m沿垂直样线收集的26种果蝇物种中三个线粒体基因的遗传变异，即16S rRNA，细胞色素c氧化酶亚基I和细胞色素c氧化酶亚基II（COI和COII）。在本研究中，生成了总共543个序列，其中16S rRNA的序列为82，COI的序列为238，COII的序列为223，分别具有16S rRNA，COI和COII基因的线粒体单倍型的21、47和45。几乎所有物种都由2-3种独特的线粒体单倍型代表，描绘出环境异质性沿高度梯度对遗传多样性的重大影响。同样首次通过这项研究向公共领域提供了一些罕见物种的分子数据，如果蝇Drosophila mukteshwarensis，尼古拉斯Liodrosophila nitida，Parordillaria洛氏疟原虫，ayarpathaensis洛氏疟原虫，Scaptomyza himalayana，Scaptomyza tistai，Zapriosus grandis和Stegana minuta。

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