Population Genetics of Heterosis: Effects of Hardy-Weinberg Disequilibrium

Wu, Rongling; Ma, Ch.-X.; Wu, Jianxiang; Fang, Weili; Casella, George

doi:10.1515/sg-2004-0001

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…Based on the chi-square test, it was shown that four of six SNPs, including g.15284 C>T, g.15525 G>A, g.15853 G>A, and g.15905 G>A were in Hardy-Weinberg equilibrium (P>0.05) in Bali cattle, while in Belgian Blue, Limousine, Wagyu and PO populations could not be counted because it was monomorphic. The disequilibrium of SNP polymorphism is caused by three factors, and they are non-random mating, mutation, and selection in the population (Wu et al, 2004).…”

Section: Allele and Genotype Frequencies And Chi-square Test Of Snp 3...mentioning

confidence: 99%

A New SNPs at 3’UTR Region of calpain 1 gene and its association with growth and meat quality traits in beef cattle

Dairoh

Jakaria

Ulum

et al. 2021

J. Indonesian Trop. Anim. Agric.

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The objective of this study was to evaluate single nucleotide polymorphisms (SNP) in the 3'UTR region of CAPN1 gene by direct sequencing technique in beef cattle and its influence on growth and meat quality of the contrast mode ultrasound image in Bali cattle. The numbers of beef cattle used were Bali cattle (n=52 heads) which compared to purebred Belgian Blue (n=30 heads), Limousine (n=14 heads), Wagyu (n=7 heads), and PO (n=10 heads). Genetic diversity data were obtained from calculations by PopGen 1.32 software. Ultrasound imaging of the thoracic longissimus dorsi muscle in Bali cattle was carried out between the 12 − 13 ribs, and the sonogram was analyzed by Image-J NIH software. The result shown that 3’UTR of CAPN1 gene was found in six discovery SNPs that polymorphic in Bali cattle, they were g.15284 C>T, g.15347 T>G, g.15525 G>A, g.15853 G>A, g.15905 G>A, g.15915 G>A and Indel mutation was polymorphic in Bali cattle, Belgian Blue, Limousine, and PO. There was no association between these SNPs and growth traits. However, SNP g.15525 G>A was significantly associated (P<0.05) with a backfat thickness (BFT) in Bali cattle. In conclusion, the CAPN1 gene in Bali cattle is a candidate for Marker Assisted Selection (MAS) related to meat quality.

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Section: Allele and Genotype Frequencies And Chi-square Test Of Snp 3...mentioning

confidence: 99%

A New SNPs at 3’UTR Region of calpain 1 gene and its association with growth and meat quality traits in beef cattle

Dairoh

Jakaria

Ulum

et al. 2021

J. Indonesian Trop. Anim. Agric.

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“…However, the long growth cycle of forest tree is the main problem, so shortening the breeding cycle is always the focus of forest tree breeding program. A lot of research on the theory and method for the early selection in many species were carried on [3][4][5][6]. On the basis of the law of tree growth and development, correlation between early and late stages of growth, and the effective age of early selection and selection trait can be find out.…”

Section: Introductionmentioning

confidence: 99%

Early Selection of <i>Larix principis-rupprechtii</i>

Zhang

Cao

Zhao

et al. 2014

AMR

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The growth process of tree height and basal diameter of 24-year old of 416 felled individual plants were measured to detect correlation between the early and late growth ofLarix principis-rupprechtii. Rank correlation, phenotypic and genetic correlation between height, basal diameter and the tree-age were analyzed. Results showed that height ofLarix principis-rupprechtiiin early tree-age was closely correlated with that in late tree-age. It was feasible for early prediction and selection. It could select preferred in 2-year old nursery seedlings, and the second suitable selection period was at the age of 9-13. And tree height was a good indicator for early selection.

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“…Thus, this theoretical population would have genotype and gene frequencies which are at an equilibrium and will continue this way indefinitely provided the assumptions are met. However, it is clear that these assumptions do not hold for many species, and thus this equation serves as a way to determine the degree to which a population deviates from equilibrium (Wu et al, 2004;Dharmarajan et al, 2013).…”

Section: List Of Tablesmentioning

confidence: 99%

Genetic Diversity Predicts Population Fitness and Persistence: The Value of Genetic Rescue Inconservation

Clarke¹

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Biodiversity loss has reached critical levels due in part to anthropogenic forces such as habitat loss and degradation. Habitat loss and degradation are particularly damaging as populations become small and isolated, resulting in limited gene flow, population declines and reduced adaptive potential. Genetic rescue, the translocation of individuals for the purpose of restoring gene flow, has been shown to produce promising results for fragmented populations but remains relatively under-used due to a lack of long-term data and monitoring of genetic rescue attempts.To promote a better understanding of genetic rescue and its potential risks and benefits over the short-term, we review and analyze all genetic rescue attempts to date to identify whether genetic diversity increases following rescue, and if this change is associated with increased fitness. We use a Bayesian meta-analytical approach to examine the relationship between fitness and genetic diversity. We found that genetic diversity, as represented by heterozygosity, was a positive predictor of population fitness. Further, we find no evidence of outbreeding depression in the short term among cases reviewed. The longer-term effects of genetic rescue were examined through the use of a population viability analysis case study. Population data was collected for a genetically isolated Canadian population of black-tailed prairie dog, representing a useful case study to simulate genetic rescue. We found that translocations resulted in long lasting increases in genetic diversity, however, find that increased likelihood of persistence was only evident after multiple translocations. Overall, we conclude that genetic rescue appears to increase genetic diversity, which predicts population growth and fitness in the short term, and may increase likelihood of persistence long-term. We echo the need for more long-term genetic monitoring of populations to ascertain whether genetic rescue may also confer adaptive potential in the long-term.

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Population Genetics of Heterosis: Effects of Hardy-Weinberg Disequilibrium

Cited by 4 publications

References 17 publications

A New SNPs at 3’UTR Region of calpain 1 gene and its association with growth and meat quality traits in beef cattle

A New SNPs at 3’UTR Region of calpain 1 gene and its association with growth and meat quality traits in beef cattle

Early Selection of <i>Larix principis-rupprechtii</i>

Genetic Diversity Predicts Population Fitness and Persistence: The Value of Genetic Rescue Inconservation

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