Recent immigrants alter the quantitative genetic architecture of paternity in song sparrows.

ABSTRACT: Quantifying additive genetic variances and cross-sex covariances in reproductive traits, and identifying processes that shape and maintain such (co)variances, is central to understanding the evolutionary dynamics of reproductive systems. Gene flow resulting from among-population dispersal could substantially alter additive genetic variances and covariances in key traits in recipient populations, thereby altering forms of sexual conflict, indirect selection, and evolutionary responses. However, the degree to which genes imported by immigrants do in fact affect quantitative genetic architectures of key reproductive traits and outcomes is rarely explicitly quantified. We applied structured quantitative genetic analyses to multiyear pedigree, pairing, and paternity data from free-living song s

SUBMITTER: Reid JM 

PROVIDER: S-EPMC7156105 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature