Kundu Shantanu, Tyagi Kaomud, Pakrashi Avas, Kumar Vikas, Kosygin Laishram, Rath Shibananda, Das Ujjal, Chandra Kailash
Centre for DNA Taxonomy, Molecular Systematics Division, Zoological Survey of India, Kolkata, India.
Freshwater Fish Section, Zoological Survey of India, Kolkata, India.
Mitochondrial DNA B Resour. 2019 Jul 18;4(2):2527-2532. doi: 10.1080/23802359.2019.1640079.
The species diversity of freshwater fishes from the transboundary river, Jaldhaka is still unknown to the scientific communities. We generated 40 DNA barcode sequences of 16 morphologically identified freshwater fishes and compared genetically with the database sequences. Ten species (, , , , , , , , , and ) showed unique haplotypes in the studied riverine system. Further, the estimated genetic divergences, BA tree topology, and ABGD species delimitation methods revealed the presence of cryptic diversity in , , , , , , and . The study suggested more exhaustive sampling and generation of more molecular data to strengthen the fact. The aimed integrated approach will be helpful to detect the extant species diversity, helps to reevaluate the checklist and promote sustainable conservation management to protect this unparalleled ecosystem.
科学界对跨界河流贾尔达卡的淡水鱼类物种多样性仍不了解。我们生成了16种形态学鉴定的淡水鱼类的40个DNA条形码序列，并与数据库序列进行了基因比较。在所研究的河流系统中，10个物种（、、、、、、、、和）显示出独特的单倍型。此外，估计的遗传分歧、贝叶斯树拓扑结构和ABGD物种界定方法揭示了、、、、、和中存在隐存多样性。该研究建议进行更详尽的采样并生成更多分子数据以强化这一事实。旨在采用的综合方法将有助于检测现存物种多样性，有助于重新评估物种清单，并促进可持续保护管理以保护这一无与伦比的生态系统。
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