马格洛普西德物种在科里莫尔菲idae和博雷海德里idae中寻找分类学家园
Daria Kupaeva1, Tatiana Lebedeva2, Zachariah Kobrinsky3
1Department of Embryology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia.
PeerJ
|December 11, 2023
概括
对水生动物的遗传学分析显示,Margelopsidae不是一个凝聚在一起的群体. 马格洛普西斯海克利属于Corymorphidae,挑战了马格洛普西德家族和属的有效性.
科学领域:
- 海洋生物学 海洋生物学
- 进化生物学 进化生物学
- 水生动物的分类学
背景情况:
- 马格罗类多的浮游生物生活方式在水生动物类Aplanulata中是不典型的.
- 之前仅使用COI数据的分子研究给Margelopsidae带来了意想不到的家族遗传位置.
- 形态特征表明Margelopsidae与Tubulariidae或Corymorphidae等家族之间存在更密切的关系.
研究的目的:
- 为了解决马格洛普斯属在水生动物中的遗传位置.
- 研究Margelopsis.属的进化起源和系统的位置.
- 通过多基因的遗传学分析,澄清马格洛普斯科的分类学地位.
主要方法:
- 通过使用核 (18S rRNA,28S rRNA) 和线粒体 (16S rRNA,COI) 标记物进行了多基因遗传学分析.
- 这项研究包括*Margelopsis haeckelii*的水体阶段和*Margelopsis hartlaubii*的水母体阶段.
- 遗传学树是为了确定这些物种与其他水生动物的关系而建立的.
主要成果:
- 强有力的分子证据将Margelopsis haeckelii置于Corymorphidae家族中.
- 发现 *Margelopsis hartlaubii* 是 *Plotocnide borealis* (北方水族家族) 的姐妹.
- 这些发现表明,Margelopsidae很可能不是一个单一的群体.
结论:
- 马格洛普西斯属和马格洛普斯科家族需要重新评估,因为其物种的基因位置不同.
- 在Corymorphidae中*M. haeckelii*的系统放置为这个家族的进化提供了新的见解.
- 这项研究强调了多基因分析对于准确的动物系统学的重要性.
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