WebDec 20, 2024 · Using forwardtime, individual-based simulations, we disentangle the effects of range expansion versus selfing to understand the potential benefits from mate reassurance and purging of deleterious alleles. We find that selfers do expand faster, but expansion load still accumulates due to demography, regardless of the mating system. WebIn these populations, genetic purging, that is, the increased selective pressure against (partially) recessive deleterious alleles due to increased homozygosis, is expected to …
Inbreeding depression explains killer whale population dynamics.
WebJul 1, 2012 · In a species with multiple queens, as seen in several species and taken to the extreme in unicolonial ants (Helantera et al. 2009), relatedness for workers to the queens and their mates is likely close to zero, making worker‐expressed loci evolve essentially neutrally because adaptive evolution and purging of deleterious mutations for … Web2680 SYLVAIN GLE´MIN FIG.1. The change in allele frequency due to selection against fully recessive (h 5 0) and deleterious mutations,zDx z xz, as a func- tion of the frequency of the deleterious allele,x. zDx z xz is plotted for different mutational effects, s. zDx z xz is convex for low values of x and concave for higher value of x (except for s 5 1). zDx z xz is more … filtro tb1374x
Slow Recovery from Inbreeding Depression Generated by the …
Webhave decreased load by purging recessive deleterious alleles [15]. Nonetheless, substantial evi-dence suggests an abundance of deleterious alleles present in modern germplasm, from the observed maintenance of heterozygosity during … WebMar 14, 2024 · Purging of deleterious alleles from the domesticated soybean has been further enhanced in selective sweep regions. Unlike outcrossing species that maintained accumulated deleterious mutations in the heterozygous state, this predominantly selfing plant may have been less tolerable to the accumulation of deleterious alleles, eventually … WebMar 1, 2024 · Nonetheless, considering the potential negative effects of deleterious alleles on important agronomic traits, more emphasis and effort should be directed and taken towards purging deleterious mutations and alleviating their phenotypic consequences in future crop breeding. Author contributions. J.Q. managed and organized the research … filtros whatman catálogo