Complete Mitogenome and Phylogenetic Analysis of a Marine Ray-Finned Fish, Alcichthys elongatus (Perciformes: Cottidae)

IF 2.1 3区 农林科学 Q2 FISHERIES
Fishes Pub Date : 2023-10-16 DOI:10.3390/fishes8100513
Maheshkumar Prakash Patil, Jong-Oh Kim, Seung Hyun Yoo, Yong Bae Seo, Yu-Jin Lee, Jin-Koo Kim, Shin-Ichi Kitamura, Gun-Do Kim
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引用次数: 0

Abstract

Alcichthys elongatus is the only species in the genus, and this work is the first to provide a comprehensive mitogenome analysis of this species. The A. elongatus mitogenome was 16,712 bp long, with biased A + T content (52.33%), and featured thirteen protein-coding genes (PCGs), twenty-two tRNAs, two rRNAs, and the control region (D-loop). The H strand encoded twenty-eight genes (twelve PCGs, fourteen tRNA, and two rRNA) and the control region, whereas the L strand encoded the remaining nine genes (ND6 and eight tRNA). Except for COXI, which started with GTG, all PCG sequences started with ATG and ended with TAA (ND4L, ND5, COXI, ATP8) or TAG (ND1, ND6) termination codons, with some (ND2, ND3, ND4, COXII, COXIII, ATP6, Cytb) having an incomplete termination codon. Except for tRNA-serine-1 (trnS), the majority of the tRNAs exhibited characteristic cloverleaf secondary structures. Based on 13 PCGs, phylogenetic analysis placed A. elongatus in the same clade as Icelus spatula. This genomic data will be useful for species identification, phylogenetic analysis, and population genetics.
长鳍鱼(Alcichthys elongatus)有丝分裂全基因组及系统发育分析(鳍形目:尾鱼科)
长鳍鱼是该属中唯一的一种,本研究首次对长鳍鱼进行了全面的有丝分裂基因组分析。全长16712 bp,偏A + T含量(52.33%),包含13个蛋白编码基因(PCGs)、22个trna、2个rnas和控制区(D-loop)。H链编码28个基因(12个PCGs、14个tRNA和2个rRNA)和控制区,L链编码其余9个基因(ND6和8个tRNA)。除COXI以GTG开头外,PCG序列均以ATG开头,以TAA (ND4L、ND5、COXI、ATP8)或TAG (ND1、ND6)终止密码子结尾,部分(ND2、ND3、ND4、COXII、COXIII、ATP6、Cytb)终止密码子不完整。除trna -丝氨酸-1 (trn)外,大多数trna具有典型的三叶草二级结构。基于13个PCGs的系统发育分析,将A. elongatus与Icelus spatula置于同一支系。这些基因组数据将有助于物种鉴定、系统发育分析和群体遗传学。
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来源期刊
Fishes
Fishes Multiple-
CiteScore
1.90
自引率
8.70%
发文量
311
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