A double-labeling marker-based method for estimating inbreeding and parental genomic components in a population under conservation

OBJECTIVE: The objective of a conservation program is to maintain maximum genetic diversity and preserve the viability of a breed. However, the efficiency of a program is influenced by the ability to accurately measure and predict genetic diversity

Détails bibliographiques
Publié dans:Asian-Australasian journal of animal sciences. - 1998. - 33(2020), 1 vom: 01. Jan., Seite 12-23
Auteur principal: Li, Wenting (Auteur)
Autres auteurs: Zhang, Mengmeng, Wang, Kejun, Lu, Yunfeng, Tang, Hui, Wu, Keliang
Format: Article en ligne
Langue:English
Publié: 2020
Accès à la collection:Asian-Australasian journal of animal sciences
Sujets:Journal Article Conservation Programs Double-labelling Method Genetic Diversity Parental Genomic Components
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520 |a OBJECTIVE: The objective of a conservation program is to maintain maximum genetic diversity and preserve the viability of a breed. However, the efficiency of a program is influenced by the ability to accurately measure and predict genetic diversity 
520 |a METHODS: To examine this question, we conducted a simulation in which common measures (i.e. heterozygosity) and novel measures (identity-by-descent probabilities and parental genomic components) were used to estimate genetic diversity within a conserved population using double-labeled single nucleotide polymorphism markers 
520 |a RESULTS: The results showed that the accuracy and sensitivity of identity-by-state probabilities and heterozygosity were close to identity by descent (IBD) probabilities, which reflect the true genetic diversity. Expected heterozygosity most closely aligned with IBD. All common measures suggested that practices used in the current Chinese pig conservation program result in a ~5% loss in genetic diversity every 10 generations. Parental genomic components were also analyzed to monitor real-time changes in genomic components for each male and female ancestor. The analysis showed that ~7.5% of male families and ~30% of female families were lost every 5 generations. After 50 generations of simulated conservation, 4 male families lost ~50% of their initial genomic components, and the genomic components for 24.8% of the female families were lost entirely 
520 |a CONCLUSION: In summary, compared with the true genetic diversity value obtained using double-labeled markers, expected heterozygosity appears to be the optimal indicator. Parental genomic components analysis provides a more detailed picture of genetic diversity and can be used to guide conservation management practices 
650 4 |a Journal Article 
650 4 |a Conservation Programs 
650 4 |a Double-labelling Method 
650 4 |a Genetic Diversity 
650 4 |a Parental Genomic Components 
700 1 |a Zhang, Mengmeng  |e verfasserin  |4 aut 
700 1 |a Wang, Kejun  |e verfasserin  |4 aut 
700 1 |a Lu, Yunfeng  |e verfasserin  |4 aut 
700 1 |a Tang, Hui  |e verfasserin  |4 aut 
700 1 |a Wu, Keliang  |e verfasserin  |4 aut 
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