Congruence between male upper lip morphology and molecular phylogeny in Parapolycope (Crustacea) with two new species from Korea
Congruence between male upper lip morphology and molecular phylogeny in Parapolycope (Crustacea) with two new species from Korea
复制标题
副水母（甲壳纲）雄性上唇形态和分子系统发育与韩国两个新种的一致性
DOI：
10.1071/is15056
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发表时间：
2016
影响因子：
2.2
通讯作者：
Akira Tsukagoshi
中科院分区：
文献类型：
--
作者：
Ivana Karanovic;Hayato Tanaka;Akira Tsukagoshi
介形类 Parapolycope Klie（1939 年）和 Kliecope Tanaka、Tsukagoshi & Karanovic（2014 年）具有两性异形的上唇，雄性在求爱时使用嘴唇。在这里，我们研究了 14 个物种的雄性上唇，以寻找同源结构。为此，嘴唇被分为六个同源部分，由它们在嘴唇上的相对位置以及嘴唇相对于其他身体部位的位置确定。我们发现远端部分（“c”）是整个分类群中变化最大的部分，可能是由于高性选择所致。我们的分支分析中使用了雄性上唇的 6 个特征以及另外 12 个特征，以便研究东亚副多目物种之间的系统发育关系。此外，18S rRNA 用于重建分子系统发育并测试形态学和分子数据之间的一致性。所有获得的树上恢复的拓扑结构几乎相同，强调了雄性上唇形态在解释这一特殊介形类群的系统发育关系中的重要性。副多形病毒，sp。十一月和 P. widoensis, sp。十一月这里描述了来自韩国海洋间质栖息地的。为了帮助进一步鉴定 12 种东亚副水母物种，我们提供了分类学索引。
The ostracod genera Parapolycope Klie, 1939 and Kliecope Tanaka, Tsukagoshi & Karanovic, 2014 have a sexually dimorphic upper lip, and males use their lip during courtship. Here we study the male upper lip of 14 species in order to find homologous structures. For this purpose, the lip is divided into six homologous parts, determined by their relative position on the lip and the lip’s position in relation to other body parts. We found that the distal part (‘c’) is the most variable across taxa, probably due to high sexual selection. Six characters of the male upper lip are used in our cladistic analysis, along with another 12, in order to study phylogenetic relationships between Parapolycope species from East Asia. In addition, 18S rRNA is used to reconstruct molecular phylogeny and test the congruence between morphological and molecular data. The recovered topology on all obtained trees is almost identical, emphasising the importance of the male upper lip morphology in interpreting phylogenetic relationships in this peculiar ostracod group. Parapolycope viriosa, sp. nov. and P. widoensis, sp. nov. from marine interstitial habitats in South Korea are described here. To aid further identification of the 12 East Asian Parapolycope species we provide a taxonomic key.