Nematodes of the genus Pristionchus are closely associated with scarab beetles and the Colorado potato beetle in Western Europe

被引:127
作者
Herrmann, Matthias [1 ]
Mayer, Werner E. [1 ]
Sommer, Ralf J. [1 ]
机构
[1] Max Planck Inst Dev Biol, Dept Evolut Biol, D-72076 Tubingen, Germany
关键词
Pristionchus; Nematoda; scarabaeoid beetles; Colorado potato beetle; Caenorhabditis elegans;
D O I
10.1016/j.zool.2006.03.001
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Evolutionary developmental biology examines how changes in developmental programmes give rise to developmental and, ultimately, morphological novelty. To this end, comparisons of related but distinct organisms have to be performed. The diplogastrid nematode Pristionchus pacificus has been developed as a satellite system for a detailed comparison of various developmental processes to the model organism Caenorhabditis elegans, a rhabditid nematode. In addition to developmental and genetic studies, a genomic platform has been established to analyse the biology of this organism. However, only little is known about where and how Pristionchus pacificus and its relatives live in the wild. Here we show that nematodes of the genus Pristionchus live in close association with scarabaeoid beetles and the Colorado potato beetle. In total, we generated 371 isogenic female lines from 4242 beetles collected at 25 sampling sites all over Europe. Isogenic female lines were subjected to sequence analysis and mating experiments for species determination. The 371 isolates fell into six species. Two hermaphroditic species account for about 60% of the collected nematodes. We found Pristionchus maupasi almost exclusively on cockchafers and Pristionchus entomophagus predominantly on dung beetles. Colorado potato beetles carried the gonochoristic species Pristionchus uniformis, which was only rarely observed on scarabaeoid beetles. We describe the initial evidence for the association of Pristionchus nematodes with beetles and provide a phylogeny based on sequence analysis of the small subunit ribosomal RNA gene. (c) 2006 Elsevier GmbH. All rights reserved.
引用
收藏
页码:96 / 108
页数:13
相关论文
共 38 条
  • [31] Stewart AD, 2002, GENETICS, V160, P975
  • [32] Sudhaus W., 2003, Journal of Nematode Morphology and Systematics, V6, P43
  • [33] RHABDITIS-(RHABDITIS)-NECROMENA SP-N (NEMATODA, RHABDITIDAE) FROM SOUTH AUSTRALIAN DIPLOPODA WITH NOTES ON ITS SIBLINGS R-MYRIOPHILA POINAR, 1986 AND R-CAULLERYI MAUPAS, 1919
    SUDHAUS, W
    SCHULTE, F
    [J]. NEMATOLOGICA, 1989, 35 (01): : 15 - 24
  • [34] Sudhaus W., 1976, Zoologica Stuttg, V43, P1
  • [35] Swofford DL., 2002, PAUP 40B10
  • [36] THEODORIDES J., 1955, CONTRIBUTION ETUDE P
  • [37] VONLIEVEN AF, 2001, THESIS BERLIN
  • [38] Conservation and diversification of Wnt signaling function during the evolution of nematode vulva development
    Zheng, M
    Messerschmidt, D
    Jungblut, B
    Sommer, RJ
    [J]. NATURE GENETICS, 2005, 37 (03) : 300 - 304