Molecular Phylogeny of the Prickly Shark, Echinorhinus cookei, Based on a Nuclear (18s rRNA) and a Mitochondrial (Cytochrome b) Gene

被引:21
|
作者
Bernardi, Giacomo [1 ]
Powers, Dennis A. [1 ]
机构
[1] Stanford Univ, Dept Biol Sci, Hopkins Marine Stn, Pacific Grove, CA 93950 USA
关键词
D O I
10.1016/1055-7903(92)90027-E
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The classification of the sharks is unclear. This is particularly true for the superorder Squalomorphii. The relationships between the squalomorphs and other superorders of sharks and the relationships between the different orders within the squalomorphs are a matter of debate. Here, we report a molecular phylogeny for a little known member of this superorder, the genus Echinorhinus. Echinorhinus is most commonly classified in either the family Echinorhinidae (Squaliformes) or the family Squalidae (Squaliformes). However, some authors have suggested a closer relationship to the order Hexanchiformes. In an attempt to shed light on this controversy, we have cloned, sequenced, and compared two genes widely used in molecular phylogeny studies, the cytochrome b and the 18S rRNA from the rare prickly shark, Echinorhinus cookei, and two potential relatives, the spiny dogfish Squalus acanthias (Squaliformes), and the sevengill shark, Notorynchus cepedianus (Hexanchiformes). The sequences of these genes for the prickly shark, the dogflsh, and the sevengill shark were found to be equally divergent, suggesting that the prickly shark is no closer to the order Squaliformes than to the order Hexanchiformes. (c) 1992 Academic Press, Inc.
引用
收藏
页码:161 / 167
页数:7
相关论文
共 50 条
  • [41] Molecular phylogeny and divergence time estimates for native giant clams (Cardiidae: Tridacninae) in the Asia-Pacific: Evidence from mitochondrial genomes and nuclear 18S rRNA genes
    Ma, Haitao
    Yu, Dongmei
    Li, Jun
    Qin, Yanping
    Zhang, Yang
    Xiang, Zhiming
    Zhang, Yuehuan
    Yu, Ziniu
    FRONTIERS IN MARINE SCIENCE, 2022, 9
  • [42] Molecular phylogenetic analysis of urochordata (tunicata) based on 18s rRNA genes
    Yokobori, Shin-ichi
    Kurabayasi, Atsushi
    Nishikawa, Jun
    Yamagishi, Akihiko
    Oshima, Tairo
    Hirose, Euichi
    ZOOLOGICAL SCIENCE, 2006, 23 (12) : 1157 - 1157
  • [43] Molecular characterization of Fusarium oxysporum by PCR amplification of 18S rRNA gene region
    Kuppusamy, Amutha
    Amar, Godavari
    Roshni, Nedumpurath Pallikkara
    INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY, 2018, 56 (11) : 842 - 846
  • [44] Phylogeny of the genus Apodemus with a special emphasis on the subgenus Sylvaemus using the nuclear IRBP gene and two mitochondrial markers:: cytochrome b and 12S rRNA
    Michaux, JR
    Chevret, P
    Filippucci, MG
    Macholan, M
    MOLECULAR PHYLOGENETICS AND EVOLUTION, 2002, 23 (02) : 123 - 136
  • [45] A phylogenetic framework for the kingdom Fungi based on 18S rRNA gene sequences
    Yarza, Pablo
    Yilmaz, Pelin
    Panzer, Katrin
    Gloeckner, Frank Oliver
    Reich, Marlis
    MARINE GENOMICS, 2017, 36 : 33 - 39
  • [46] Phylogenetic analysis of the micrognathozoan, Limnognathia maerski, based on the 18S rRNA gene
    Campbell, TG
    Garey, JR
    INTEGRATIVE AND COMPARATIVE BIOLOGY, 2003, 43 (06) : 1075 - 1075
  • [47] SDS-protein and 18S rRNA gene, and phylogeny-based identification of hydatid cysts in human and animal samples
    Amer, Qasim Jawad
    Al-Kaabi, Nawras Abdul bari Madlol
    Alkaabawi, Naer Abdulbari Madlool
    PLANT SCIENCE TODAY, 2024, 11 (03): : 480 - 485
  • [48] Recovery of an Acanthamoeba strain with two group I introns in the nuclear 18S rRNA gene
    Corsaro, Daniele
    Kohsler, Martina
    Venditti, Danielle
    Rott, Marilise B.
    Walochnik, Julia
    EUROPEAN JOURNAL OF PROTISTOLOGY, 2019, 68 : 88 - 98
  • [49] Genetic Divergence of Mussels (Mollusca, Mytilidae) Based on the 28S rRNA, 18S rRNA, and H3 Nuclear Gene Sequences
    Yu. Ph. Kartavtsev
    S. N. Sharina
    A. Yu. Chichvarkhin
    O. V. Chichvarkhina
    N. A. Masalkova
    K. A. Lutaenko
    C. Oliveira
    Russian Journal of Genetics, 2018, 54 : 652 - 669
  • [50] Genetic Divergence of Mussels (Mollusca, Mytilidae) Based on the 28S rRNA, 18S rRNA, and H3 Nuclear Gene Sequences
    Kartavtsev, Yu. Ph.
    Sharina, S. N.
    Chichvarkhin, A. Yu.
    Chichvarkhina, O. V.
    Masalkova, N. A.
    Lutaenko, K. A.
    Oliveira, C.
    RUSSIAN JOURNAL OF GENETICS, 2018, 54 (06) : 652 - 669