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基于 COI、ITS2、腕色和几何形态计量学的普通蛇尾类（棘皮动物门：蛇尾纲）综合种系发生学研究：见解。

Integrative species delimitation in the common ophiuroid (Echinodermata: Ophiuroidea): insights from COI, ITS2, arm coloration, and geometric morphometrics.

机构信息

Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México.

Laboratorio de Sistemática y Ecología de Equinodermos, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México.

出版信息

PeerJ. 2023 Jul 17;11:e15655. doi: 10.7717/peerj.15655. eCollection 2023.

DOI:10.7717/peerj.15655
PMID:37483979
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10358340/
Abstract

(Say, 1825) is one of the most common and well-known ophiuroids in the Western Atlantic, with a wide geographic and bathymetric range. The taxonomy of this species has been controversial for a century because of its high morphological variability. Here we integrate information from DNA sequence data, color patterns, and geometric morphometrics to assess species delimitation and geographic differentiation in . We found three deeply divergent mtDNA-COI clades (K2P 17.0-27.9%). ITS2 nuclear gene and geometric morphometrics of dorsal and ventral arm plates differentiate one of these lineages, as do integrative species delineation analyses, making this a confirmed candidate species.

摘要

（Say, 1825）是西大西洋最常见和知名的蛇尾类之一，分布范围广泛，地理和水深跨度大。由于其高度的形态变异性，该物种的分类学一直存在争议。在这里，我们整合了来自 DNA 序列数据、颜色模式和几何形态计量学的信息，以评估 中的物种划定和地理分化。我们发现了三个深度分化的 mtDNA-COI 谱系（K2P 17.0-27.9%）。核基因 ITS2 和背侧和腹侧臂板的几何形态计量学区分了其中的一个谱系，综合物种划定分析也是如此，这使其成为一个确认的候选物种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/c1620344c6ec/peerj-11-15655-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/30bb71d90f47/peerj-11-15655-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/f62b957c15a0/peerj-11-15655-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/b85ddb5c7756/peerj-11-15655-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/d73c8f22e4d3/peerj-11-15655-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/40a4bd02473a/peerj-11-15655-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/c4294a5d1c00/peerj-11-15655-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/d6b4a36ca917/peerj-11-15655-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/09f1e717fc99/peerj-11-15655-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/c1620344c6ec/peerj-11-15655-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/30bb71d90f47/peerj-11-15655-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/f62b957c15a0/peerj-11-15655-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/b85ddb5c7756/peerj-11-15655-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/d73c8f22e4d3/peerj-11-15655-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/40a4bd02473a/peerj-11-15655-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/c4294a5d1c00/peerj-11-15655-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/d6b4a36ca917/peerj-11-15655-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/09f1e717fc99/peerj-11-15655-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6ca/10358340/c1620344c6ec/peerj-11-15655-g009.jpg

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