Repeatability of crossover rate in wild sticklebacks

Abstract Crossovers in meiosis have an important role sexual reproduction ensuring the segregation of chromosomes and shuffling genetic material. Despite their profound importance, little is known about heritability repeatability crossover rate wild. We studied variation outbred nine- (Pungitius pungitius) three-spined (Gasterosteus aculeatus) stickleback populations to estimate its (h2) (R). Based on interpreted from parent–F1-offspring linkage maps created single nucleotide polymorphism data, was moderate at best, but higher females (R = 0.24 R 0.33) than males 0.017 0.11) both species. Owing low degree variance parental relatedness sample sizes, heritabilities could not be estimated with confidence. However, given that sets upper limit h2, indicated males. A review comparison previously reported estimates revealed repeatabilities were relatively high, whereas those very low. Collectively, our results earlier suggest evolvability rate.