Associative Overdominance and Negative Epistasis Shape Genome-Wide Ancestry Landscape in Supplemented Fish Populations [PDF]
Genes, 2021 The interplay between recombination rate, genetic drift and selection modulates variation in genome-wide ancestry. Understanding the selective processes at play is of prime importance toward predicting potential beneficial or negative effects of ...
Maëva Leitwein +2 more
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Overdominance at the Gene Expression Level Plays a Critical Role in the Hybrid Root Growth of Brassica napus [PDF]
International Journal of Molecular Sciences, 2021 Despite heterosis contributing to genetic improvements in crops, root growth heterosis in rapeseed plants is poorly understood at the molecular level.
Nesma Shalby +11 more
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Transition from Background Selection to Associative Overdominance Promotes Diversity in Regions of Low Recombination [PDF]
Current Biology, 2019 Linked selection is a major driver of genetic diversity. Selection against deleterious mutations removes linked neutral diversity (background selection, BGS, Charlesworth et al.
Kimberly J. Gilbert +3 more
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A potential role for overdominance in the maintenance of colour variation in the Neotropical tortoise beetle, Chelymorpha alternans [PDF]
Journal of Evolutionary Biology, 2021 The presence of persistent polymorphisms within natural populations elicits the question of how such polymorphisms are maintained. All else equal, genetic drift and natural selection should remove genetic variants from populations.
Lynette R. Strickland +3 more
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Genetic Allee Effects for Controlling Invasive Populations. [PDF]
Mol EcolABSTRACT Invasive pests threaten food security and devastate ecosystems. A universal problem in their management is that small populations can easily evade detection. This makes identifying new incursions challenging and complicates efforts to eradicate or contain established populations.
Nowell Nicolle L +3 more
europepmc +2 more sources
Overdominance in livestock breeding: examples and current status
Advances in Life Sciences, 2023 Recent data have revealed that genetic variation could be attributed to overdominance, or heterozygote advantage. However, genomic survey showed that only a small number of genes that have polymorphisms maintained by overdominance which is consistent ...
Anh Phu Nam Bui +3 more
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Overdominance Effect of the Bovine Ghrelin Receptor (GHSR1a)-DelR242Locus on Growth in Japanese Shorthorn Weaner Bulls: Heterozygote Advantage in Bull Selection and Molecular Mechanisms [PDF]
G3: Genes, Genomes, Genetics, 2014 Ghrelin and the ghrelin receptor (GHSR1a) are involved in growth hormone secretion, food intake, and several other important functions. Ghrelin acts on GHSR1a and induces signal transduction via the Gαq subunit.
Masanori KOMATSU +11 more
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Assessment of economic traits’ inheritance of winter rye at intraspecific hybridization [PDF]
BIO Web of Conferences, 2021 Intraspecific hybridization in winter rye selection (Secale cereale L. ssp. cereale) is a source of intrapopulation genotypic variability with the possibility of using the effect of interpopulation heterosis.
Parfenova Elena +4 more
doaj +1 more source
Fine Mapping of fw6.3, a Major-Effect Quantitative Trait Locus That Controls Fruit Weight in Tomato
Plants, 2023 Tomato (Solanum lycopersicum) is a widely consumed vegetable, and the tomato fruit weight is a key yield component. Many quantitative trait loci (QTLs) controlling tomato fruit weight have been identified, and six of them have been fine-mapped and cloned.
Yu Ning +18 more
doaj +1 more source
bioRxiv, 2022 Classical models that ignore linkage predict that deleterious recessive mutations should purge or fix within inbred populations, yet inbred populations often retain moderate to high segregating load.
D. A. Awad, D. Waller
semanticscholar +1 more source