Divya P R, Mohitha C, Rahul G Kumar, Rajool Shanis C P, Basheer V S, Gopalakrishnan A
Peninsular and Marine Fish Genetic Resources Centre, NBFGR, CMFRI Campus, Cochin 682018, India.
Peninsular and Marine Fish Genetic Resources Centre, NBFGR, CMFRI Campus, Cochin 682018, India.
Mol Phylogenet Evol. 2017 Apr;109:240-245. doi: 10.1016/j.ympev.2016.12.030. Epub 2017 Jan 3.
Pomfrets (Genus Pampus) are commercially important fishes in the Indo Pacific region. The systematics of this genus is complicated due to morphological similarities between species. The silver pomfret from Indian waters has long been considered to be Pampus argenteus. The objective of the study was to utilize the mitochondrial COI gene to establish the molecular identity of the silver pomfret distributed in Indian waters and to resolve the phylogenetic relationships among Pampus species in the world based on sequence data in the NCBI database. Seven valid Pampus species are identified in this study. The mean genetic divergence value calculated between clades representing these species was 7.9%. The mean genetic distance between the so-called Pampus argenteus from Indian waters and sequences attributed to P. argenteus from the South China Sea, where the neotype of this species was collected, was found to be greater than 12%, strongly supporting the likelihood of the Indian species being distinct. The Indian Pampus species show very close affinity to P. cinereus, with inter species differences less than 2%. The taxonomic identity of the silver pomfret in India is also discussed here, in light of molecular and morphological evidence.
鲳属鱼类是印度-太平洋地区具有重要商业价值的鱼类。由于物种间形态相似，该属的系统分类较为复杂。长期以来，印度海域的银鲳一直被认为是银鲳（Pampus argenteus）。本研究的目的是利用线粒体细胞色素氧化酶亚基I（COI）基因确定分布于印度海域的银鲳的分子身份，并基于美国国立生物技术信息中心（NCBI）数据库中的序列数据解析全球鲳属物种之间的系统发育关系。本研究鉴定出7种有效的鲳属物种。代表这些物种的分支之间计算出的平均遗传分歧值为7.9%。在印度海域所谓的银鲳与该物种新模式标本采集地南海的银鲳序列之间发现的平均遗传距离大于12%，有力地支持了印度物种为不同物种的可能性。印度的鲳属物种与灰鲳（P. cinereus）亲缘关系非常密切，种间差异小于2%。本文还根据分子和形态学证据讨论了印度银鲳的分类身份。
