Reproductive dynamics shapes genomotype composition in an allopolyploid complex.

ABSTRACT: Hybrid complexes are composed of organisms with multiple combinations of parental genomes (genomotypes) that interconnect through nets of crosses. Although several such complexes are well established without speciation or extinction, mechanisms shaping their dynamics remain poorly understood. In this study, we quantified the reproductive success of the allopolyploid Iberian fish Squalius alburnoides in experimental free-access and directional crosses involving the most common genomotypes. Specifically, we analysed the paternity of the offspring produced when females had free access to male genomotypes and quantified variations in egg allocation, fertilization rate, and offspring survival among crosses involving each male genomotype. The composition of the offspring produced from free-acces

SUBMITTER: Morgado-Santos M 

PROVIDER: S-EPMC4892787 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature