Reproductive isolation in Caenorhabditis: terminal phenotypes of hybrid embryos

S E Baird; W C Yen

doi:10.1046/j.1525-142x.2000.00031.x

Reproductive isolation in Caenorhabditis: terminal phenotypes of hybrid embryos

Evol Dev. 2000 Jan-Feb;2(1):9-15. doi: 10.1046/j.1525-142x.2000.00031.x.

Authors

S E Baird¹, W C Yen

Affiliation

¹ Department of Biological Sciences, Wright State University, Dayton, OH 45435, USA. scott.baird@wright.edu

PMID: 11256419
DOI: 10.1046/j.1525-142x.2000.00031.x

Abstract

Several interspecific combinations of the "elegans" group of Caenorhabditis species are cross-fertile. Most F1 hybrids from these crosses arrest during embryogenesis. Developmental defects observed in hybrid embryos include defects in gastrulation initiation, defects in embryonic compaction, and defects in embryonic elongation. These reproductive barriers have arisen multiple times in the evolution of Caenorhabditis.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Animals
Caenorhabditis elegans / embryology*
Caenorhabditis elegans / genetics
Caenorhabditis elegans / physiology*
Embryonic Development
Phenotype
Reproduction*