s180 : general enhancer of meiotic recombination. ES1.
Increase recomb.
See also s180
[Rose AM ] increases meiotic recombination in gene clusters, reduces recombination on chromosome arms, distribution of crossovers in Rec-1 approximates physical map. ES1 ME3 NA1.
[C.elegansII] s180 : increases meiotic recombination in gene clusters, reduces recombination on chromosome arms; distribution of crossovers in Rec-1 approximates physical map. ES1, ME3. NA1. [Rose and Baillie 1979; Zetka and Rose 1995; KR]
rec-1 affects the recombination frequency in the central gene cluster region of autosomes and has been shown to alter the distribution of genes on the genetic map of the X chromosome, also affects X-chromosome nondisjunction; does not appear to act pre-meiotically.