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首页> 外文期刊>Marine genomics >Mitogenome of the small abalone Haliotis diversicolor Reeve and phylogenetic analysis within Gastropoda
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Mitogenome of the small abalone Haliotis diversicolor Reeve and phylogenetic analysis within Gastropoda

机译：小鲍鲍鱼嗜盐菌的线粒体组和腹足纲内的系统发育分析

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摘要

The complete mitochondrial coding regions of three small abalones Haliotis diversicolor Reeve, two collected from Vietnam and one from southern China, were successfully sequenced. The molecular feature of the mitochondrial genome is identical with the general description of the family Haliotidae mtDNAs that have been sequenced so far. The sequenced nucleotides are 16,186–16,266 bp in length. The mitogenome encodes 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. Between adjacent genes trnH and nad5 there is an overlapping region. Comparison of the ratios of Ka and Ks among four species of Haliotis (H. diversicolor, H. discus hannai, H. rubra and H. tuberculata tuberculata) reveals that values of Ka/Ks in some NADH dehydrogenase and ATPase genes such as nad2, nad6 and atp8 are higher than those in other mitochondrial genes. Genome-wide gene arrangement among four species of Haliotis has been compared. Although all gene arrangement is the same in H. diversicolor, H. discus hannai and H. rubra, the location of trnS_2 and trnF in H. tuberculata tuberculata are inter-exchanged. Both gene arrangement and phylogenetic analysis support that the family Haliotidae is at a relatively primordial phylogenetic position in Gastropoda. Through alignment between Vietnam and southern China individuals, 111 SNPs are detected, most SNPs are synonymous mutations, and 7, 94 and 10 SNPs are observed at NCR, protein-coding region and RNA region, respectively. The result of SNP analysis also demonstrates that the difference ismainly in some NADH dehydrogenase genes between the Vietnam and southern China individuals.
机译：成功地测序了三个小鲍鱼Haliotis diversicolor Reeve的完整线粒体编码区，其中两个来自越南，一个来自中国南方。线粒体基因组的分子特征与迄今已测序的Haliotidae mtDNA家族的一般描述相同。测序的核苷酸长度为16,186–16,266 bp。有丝分裂基因组编码13个蛋白质编码基因，2个核糖体RNA基因和22个转移RNA基因。在相邻的基因trnH和nad5之间有一个重叠区域。比较4种盐生鲍鱼（H. diversicolor，H。discus hannai，H。rubra和H. tuberculata tuberculata）中Ka和Ks的比率，发现某些NADH脱氢酶和ATPase基因（如nad2， nad6和atp8高于其他线粒体基因。比较了四种盐藻中全基因组的基因排列。尽管在杂色嗜血杆菌，汉斯嗜血杆菌和红孢嗜血杆菌中所有基因的排列都相同，但结核菌中trnS_2和trnF的位置是相互交换的。基因安排和系统发育分析都支持盐科科在腹足纲中处于相对原始的系统发生位置。通过越南与中国南方个体之间的比对，检测到111个SNP，大多数SNP为同义突变，并且在NCR，蛋白质编码区和RNA区分别观察到7、94和10个SNP。 SNP分析的结果还表明，该差异主要是越南人和中国南方人之间某些NADH脱氢酶基因的差异。

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