马来西亚半岛羽毛背鱼属 Chitala(Osteoglossomorpha:Notopteridae)的综合分类法

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Luqman Hakim Ruzman, Jamsari Amirul Firdaus Jamaluddin, Abdullah Halim Muhammad‐Rasul, Tedjo Sukmono, Md. Zain Khaironizam, Sébastien Lavoué
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引用次数: 0

摘要

淡水羽毛背鱼属 Chitala(Osteoglossomorpha: Notopteridae)的分类学仍未确定,因为仅根据形态学来划分和命名 Chitala 的物种会导致不同的假说。在这项研究中,我们采用了一种综合分类方法,结合形态学和两种线粒体标记物:细胞色素 c 氧化酶亚单位 I(COI)和细胞色素 b 基因,旨在确定马来西亚半岛存在的 Chitala 种类的数量和身份。在马来西亚半岛共采集了 60 个 Chitala 标本。最初,所有标本根据其身体标记模式被分为三个不同的类别。分子系统进化分析表明,这些组别均为单系,自动物种划分方法进一步确认了它们为不同的物种。尽管多元形态分析未能完全区分这三个物种,但这些结果支持马来西亚半岛存在三个奇塔拉物种。通过与原始物种描述和来自邻近地区的另外 70 个 Chitala 标本的遗传数据进行比较,我们将这些物种命名为 Chitala lopis、Chitala borneensis 和 Chitala ornata。我们还发现印度尼西亚存在两个未被描述的物种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrative taxonomy of the featherback fish genus Chitala (Osteoglossomorpha: Notopteridae) in Peninsular Malaysia
The taxonomy of the freshwater featherback fish genus Chitala (Osteoglossomorpha: Notopteridae) remains unsettled because delimiting and naming Chitala species based solely on morphology led to different hypotheses. In this study, we aim to determine the number and identity of Chitala species present in Peninsular Malaysia by employing an integrative taxonomic approach that combines morphology and two mitochondrial markers: the cytochrome c oxidase subunit I (COI) and cytochrome b genes. A total of 60 specimens of Chitala were collected throughout Peninsular Malaysia. Initially, all specimens were sorted into three distinct categories based on their body marking patterns. A molecular phylogenetic analysis revealed that each of these groups was monophyletic, and an automated species partition method further recognized them as distinct species. These results support the presence of three Chitala species in Peninsular Malaysia, even though a multivariate morphometric analysis failed to fully differentiate each of these three species. Comparison with original species descriptions and genetic data from an additional 70 Chitala specimens from neighbouring regions allowed us to name these species as Chitala lopis, Chitala borneensis, and Chitala ornata. We also showed the presence of two undescribed species in Indonesia.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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