X chromosome effect on maternal recombination and meiotic drive in the mouse.
We observed that maternal meiotic drive favoring the inheritance of DDK alleles at the Om locus on mouse chromosome 11 was correlated with the X chromosome inactivation phenotype of (C57BL/6-Pgk1(a) x DDK)F(1) mothers. The basis for this unexpected observation appears to lie in the well-documented effect of recombination on meiotic drive that results from nonrandom segregation of chromosomes. Our analysis of genome-wide levels of meiotic recombination in females that vary in their X-inactivation phenotype indicates that an allelic difference at an X-linked locus is responsible for modulating levels of recombination in oocytes.
de La Casa-Esperón
Elena
E
Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, USA.
Loredo-Osti
J Concepción
JC
Pardo-Manuel de Villena
Fernando
F
Briscoe
Tammi L
TL
Malette
Jan Michel
JM
Vaughan
Joe E
JE
Morgan
Kenneth
K
Sapienza
Carmen
C
D000818:Animals; D004303:Dosage Compensation, Genetic; D005260:Female; D008540:Meiosis; D051379:Mice; D008810:Mice, Inbred C57BL; D008957:Models, Genetic; D011995:Recombination, Genetic; D014960:X Chromosome