WebSep 2, 2024 · Inbreeding depression was greater in maize than teosinte for 15 of 18 traits, congruent with the greater segregating genetic load predicted from sequence data in the maize population. For many traits - and more commonly in maize - genetic variation among selffertilized families was less than expected based on additive and dominance variance ... WebInbreeding depression also occurs in wild species in natural habitats, and its impacts are typically more severe than in captivity. For example, inbreeding depression was detected in 90% of 157 data sets from a broad array of animal and plant taxa in natural environments, and the average impact was seven-fold greater than in captivity.

An epigenetic basis of inbreeding depression in maize

WebDec 1, 2024 · Therefore, IMPH is a function of inbreeding depression, genetic divergence, and dominance whereas panmictic-midparent heterosis is a function only of genetic divergence and dominance (Lamkey and Edwards 1999). In maize, heterosis is exploited by creating single-cross hybrids from two genetically distinct heterotic pools. WebInbreeding depression refers to the decrease or loss of fitness and strength which is mainly caused due to inbreeding. In simpler form, the mating between the relatives in a small population is common and this may lower … blox fruits sea events

Inbreeding Depression in Genotypically Matched Diploid and …

WebAbstract. Self-fertilization (also known as selfing) is an important reproductive strategy in plants and a widely applied tool for plant genetics and plant breeding. Selfing can lead to inbreeding depression by uncovering recessive deleterious variants, unless these variants are purged by selection. Here we investigated the dynamics of purging ... WebInbreeding depression Example for maize height F 2 F 3 F 4 F 5 F 6. 9 Fitness traits and inbreeding depression •Often seen that inbreeding depression is strongest on fitness-relative traits such as yield, height, etc. •Traits less associated with fitness often show less inbreeding depression WebThe objective of this study was to evaluate the combining ability and inbreeding depression of commercial maize hybrids for agricultural traits. Twenty-two commercial maize hybrids, 96 F1 crosses ... blox fruits sea beast drops