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

被引：2

作者：

Hernandez-Diaz, Yoalli Quetzalli ^{[1
,2
,3
]}

Solis, Francisco ^{[2
]}

Beltran-Lopez, Rosa G. ^{[4
,5
]}

Benitez, Hugo A. ^{[6
,7
]}

Diaz-Jaimes, Pindaro ^{[8
]}

Paulay, Gustav ^{[9
]}

机构：

[1] Univ Nacl Autonoma Mexico, Posgrad Ciencias Mar & Limnol, Ciudad De Mexico, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Lab Sistemat & Ecol Equinodermos, Ciudad De Mexico, Mexico

[3] Univ Nacl Autonoma Mexico, Fac Ciencias, Unidad Multidisciplinaria Docencia Invest Sisal, Sisal, Yucatan, Mexico

[4] Univ Autonoma Estado Morelos, Ctr Invest Biol, Lab Ictiol, Cuernavaca, Morelos, Mexico

[5] Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Ciudad De Mexico, Mexico

[6] Univ Catolica Maule, Ctr Invest Estudios Avanzados Maule, Lab Ecol & Morfometria Evolut, Inst Milenio Biodivers Ecosistemas Antart & Subant, Talca, Chile

[7] Univ Bernardo OHiggins, Ctr Invest Recursos Nat & Sustentabil CIRENYS, Santiago, Chile

[8] Univ Nacl Autonoma Mexico, Inst Ciencias del Mar & Limnol, Unidad Acad Ecol & Biodiversidad Acuat, Ciudad De Mexico, Mexico

[9] Univ Florida, Florida Nat Hist Museum, Gainesville, FL USA

来源：

PEERJ | 2023年 / 11卷

关键词：

Nuclear DNA; Mitochondrial DNA; Morphology; Geometrics morphometrics; Integrative taxonomy; Caribbean; Gulf of Mexico; Coral reefs; BRITTLE-STARS ECHINODERMATA; CRYPTIC SPECIATION; POPULATION-GROWTH; MEASUREMENT ERROR; CORAL-REEF; DNA; MITOCHONDRIAL; DIVERSITY; ATLANTIC; COMPLEX;

D O I：

10.7717/peerj.15655

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ophiothrix angulata (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 O. angulata. 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.

引用

页数：28