Genetic architecture and temporal analysis of Caenorhabditis briggsae hybrid developmental delay.

ABSTRACT: Identifying the alleles that reduce hybrid fitness is a major goal in the study of speciation genetics. It is rare to identify systems in which hybrid incompatibilities with minor phenotypic effects are segregating in genetically diverse populations of the same biological species. Such traits do not themselves cause reproductive isolation but might initiate the process. In the nematode Caenorhabditis briggsae, a small percent of F2 generation hybrids between two natural populations suffer from developmental delay, in which adulthood is reached after approximately 33% more time than their wild-type siblings. Prior efforts to identify the genetic basis for this hybrid incompatibility assessed linkage using one or two genetic markers on chromosome III and suggested that delay is caused by a t

SUBMITTER: Velazco-Cruz L 

PROVIDER: S-EPMC9371335 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature