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New insights about species delimitation in red snappers (Lutjanus purpureus and L. campechanus) using multilocus data.
Molecular Phylogenetics and Evolution ( IF 3.6 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.ympev.2020.106780 Raimundo da Silva 1 , Carmen Del R Pedraza-Marrón 2 , Iracilda Sampaio 3 , Ricardo Betancur-R 2 , Grazielle Gomes 4 , Horacio Schneider
Molecular Phylogenetics and Evolution ( IF 3.6 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.ympev.2020.106780 Raimundo da Silva 1 , Carmen Del R Pedraza-Marrón 2 , Iracilda Sampaio 3 , Ricardo Betancur-R 2 , Grazielle Gomes 4 , Horacio Schneider
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Lutjanus campechanus and Lutjanus purpureus are two commercially important lutjanid fishes (snappers) with non-sympatric distribution throughout Western Atlantic. Even though both taxa have traditionally been regarded as valid species, their taxonomic status remains under debate. In the present study, we used phylogeographic approaches and molecular methods of species delimitation to elucidate the taxonomic issues between both species, based on 1478 base pairs from four genomic regions. We found haplotypes shared between the two species, particularly in relation to nuclear DNA (nuDNA) sequences. The molecular delimitation of species supported the discrimination of L. purpureus and L. campechanus as distinct evolutionary units. Nonetheless, a unidirectional gene flow was found from L. campechanus towards L. purpureus. Therefore, it seems plausible to infer that L. campechanus and L. purpureus are two evolutionary units in which the apparent sharing of haplotypes should be driven by introgression.
中文翻译：
利用多基因座数据对红鲷鱼（Lutjanus purpureus和L. campechanus）中的物种划界的新见解。
Lutjanus campechanus和Lutjanus purpureus是两种在商业上很重要的lutjanid鱼（鲷鱼），在整个西大西洋地区都有非同族分布。尽管传统上将两个分类单元都视为有效物种，但它们的分类地位仍在争论中。在本研究中，我们基于来自四个基因组区域的1478个碱基对，使用了物种划分的系统地理学方法和分子方法来阐明两个物种之间的分类学问题。我们发现两个物种之间共有单倍型，特别是与核DNA（nuDNA）序列有关。物种的分子定界支持对紫苏和坎普chanus作为不同的进化单位的区分。然而，发现了从坎氏乳杆菌向紫癜L的单向基因流。因此，
更新日期：2020-03-03
中文翻译：
利用多基因座数据对红鲷鱼（Lutjanus purpureus和L. campechanus）中的物种划界的新见解。
Lutjanus campechanus和Lutjanus purpureus是两种在商业上很重要的lutjanid鱼（鲷鱼），在整个西大西洋地区都有非同族分布。尽管传统上将两个分类单元都视为有效物种，但它们的分类地位仍在争论中。在本研究中，我们基于来自四个基因组区域的1478个碱基对，使用了物种划分的系统地理学方法和分子方法来阐明两个物种之间的分类学问题。我们发现两个物种之间共有单倍型，特别是与核DNA（nuDNA）序列有关。物种的分子定界支持对紫苏和坎普chanus作为不同的进化单位的区分。然而，发现了从坎氏乳杆菌向紫癜L的单向基因流。因此，
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