Alves Douglas Fernandes Rodrigues, Lima Daniel josÉ Marcondes, Hirose Gustavo Luis, Martinez Pablo Ariel, Dolabella Silvio Santana, De Paiva Barros-Alves Samara
Laboratório de Carcinologia, Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, CEP 49100-000, São Cristóvão, Sergipe, Brazil..
Zootaxa. 2018 Nov 28;4526(1):41-55. doi: 10.11646/zootaxa.4526.1.3.
An integrative approach was used, combining morphological and molecular analyses, to provide the first report of Lysmata lipkei and L. vittata in Sergipe State, Brazil, and confirm that both species are invasive of the Atlantic Ocean. Lysmata shrimps were sampled in the estuary region of the Vaza-Barris river, Sergipe State, northeastern Brazil, and identified as L. lipkei (n = 8) and L. vittata (n = 20). To molecular phylogenetic analysis was used 16S DNA fragments, comparing 26 species of the Lysmata-Exhippolysmata clade and two species of the genus Merguia (outgroup). Phylogenetic analysis indicated the absence of consistent genetic divergence (p distance < 0.018) between specimens from Atlantic and Indo-Pacific oceans. We conclude that L. lipkei and L. vittata have successfully invaded the western Atlantic and are also present in Sergipe State, northeastern Brazil.
采用了一种综合方法，将形态学和分子分析相结合，以提供巴西塞尔希培州利普凯斯扁虾（Lysmata lipkei）和条纹扁虾（L. vittata）的首次报告，并证实这两个物种都已侵入大西洋。在巴西东北部塞尔希培州瓦扎-巴里斯河河口地区采集了扁虾样本，鉴定为利普凯斯扁虾（n = 8）和条纹扁虾（n = 20）。对16S DNA片段进行了分子系统发育分析，比较了扁虾-真扁虾属（Lysmata-Exhippolysmata）分支的26个物种和梅尔吉亚属（Merguia）的两个物种（外类群）。系统发育分析表明，来自大西洋和印度-太平洋的样本之间没有一致的遗传差异（p距离<0.018）。我们得出结论，利普凯斯扁虾和条纹扁虾已成功侵入西大西洋，并且在巴西东北部的塞尔希培州也有出现。
