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Morphological and genetic differentiation of heteromorphy in Labidocera rotunda (Copepoda, Calanoida, Pontellidae).
Jeong, Hyeon Gyeong; Soh, Ho Young; Suh, Hae-Lip.
Afiliação
  • Jeong HG; Planning Office for Marine Biodiversity Institute of Korea, Ministry of Ocean and Fisheries, Sejong Special Self-governing City, 339-012, Korea.; Email: copepoda@korea.kr.
  • Soh HY; Faculty of Marine Technology, Chonnam National University, Yeosu, Jeonnam 550-749, Korea.; Email: hysoh@jnu.ac.kr.
  • Suh HL; Department of Oceanography, Chonnam National University, Gwangju 500-757, Korea.; Email: suhhl@jnu.ac.kr.
Zootaxa ; 3764: 181-91, 2014 Feb 10.
Article em En | MEDLINE | ID: mdl-24870631
ABSTRACT
The pontellid calanoid Labidocera rotunda Mori, 1929 is relatively widespread in the inshore surface waters of East Asia. In this study, some heteromorphic specimens have been observed with extreme morphological discrepancies in the female, including the genital double-somite, the second urosomite, the caudal rami, and the fifth leg. To evaluate the validity of species assignment of the morphological variants, we analyzed the DNA sequences of two mitochondrial genes, 16S rRNA and cytochrome oxidase subunit I (mtCOI). The specimens were collected in the Yellow Sea, the East China Sea and the East Sea (Sea of Japan) around Korea. They differed by <2.9% for mt16S rRNA and by 3.7%-4.7% for mtCOI, suggesting that they are conspecific despite their considerable morphological differences. In contrast, Labidocera japonica Mori, 1935, a morphologically similar species to L. rotunda, displayed interspecific variation of 6.1%-7.2% for mt16S rRNA and 15.1%-16.7% for mtCOI.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Variação Genética / Copépodes Idioma: En Ano de publicação: 2014 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Variação Genética / Copépodes Idioma: En Ano de publicação: 2014 Tipo de documento: Article