Trucco María Inés, Buratti Claudio César
Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) Paseo Victoria Ocampo Nº1, Escollera Norte, B7602HSA Mar del Plata, Provincia de Buenos Aires, República Argentina.
Mol Biol Res Commun. 2017 Sep;6(3):141-152. doi: 10.22099/mbrc.2017.25981.1276.
Taxonomically, Argentine mackerels were first considered as and later as Houttuyn 1782, although, in the last years, different studies have suggested that South Atlantic mackerel species belongs to Gmelin 1789. These latter results, incorporated in the main fish databases (FishBase and Catalog of Fishes), promoted a phylogenetic study using cytochrome c oxidase I (COI) gene sequences taken from the Barcode of Life (FISH-BOL) database. Thus, 76 sequences of , , and from different regions were used; including 3 from as outgroup. Among selected sequences are those corresponding to the Argentine mackerels collected in 2007. Phylogenetic trees were obtained by neighbor joining and maximum likelihood methods and a network of haplotypes was reconstructed to analyze the relationship between species. The results showed the clear differentiation of , and from the Pacific while from Argentina was included in the group, with genetic differences corresponding to conspecific populations (0.1%). Four of the five Argentine specimens shared the same haplotype with , and none were shared with from the Pacific. These results suggest that the current specific name of Argentine mackerel should be changed to , in agreement with several genetic studies carried out with species of the genus .
在分类学上，阿根廷鲭最初被认为属于[具体名称1]，后来又被认为属于胡氏鲭（Houttuyn，1782年），不过，近年来，不同的研究表明南大西洋鲭属物种属于[具体名称2]（Gmelin，1789年）。后一种结果被纳入主要的鱼类数据库（FishBase和鱼类目录），促使人们利用取自生命条形码（FISH - BOL）数据库的细胞色素c氧化酶I（COI）基因序列进行系统发育研究。因此，使用了来自不同区域的76条[具体名称1]、[具体名称2]、[具体名称3]和[具体名称4]的序列；包括3条来自[外群名称]作为外群。在所选序列中，有对应于2007年采集的阿根廷鲭的序列。通过邻接法和最大似然法获得系统发育树，并重建单倍型网络以分析物种间的关系。结果显示，[具体名称1]、[具体名称2]和[具体名称3]与太平洋的物种明显分化，而来自阿根廷的[具体名称4]被归入[具体名称5]组，其遗传差异与同种群体相对应（0.1%）。五个阿根廷标本中有四个与[具体名称5]共享相同的单倍型，没有一个与来自太平洋的[具体名称1]共享。这些结果表明，阿根廷鲭目前的学名[具体名称4]应改为[具体名称5]，这与对[属名]属物种进行的多项遗传学研究结果一致。
