Genetic analysis of sexual size dimorphism in Markhoz goat

Baneh, Hasan; Ghaderi–Zefrehei, Mostafa; Pouryaei, Raana; Mandal, Ajoy

doi:10.1007/s11250-020-02528-8

Cited by 2 publications

(14 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, values of r a in the SSMT declined with age, leaving open the potential for some SSD between the sexes following puberty. Large positive genetic correlations between males and females for growth-related traits have been reported in sheep (Ghafouri-Kesbi & Notter, 2016;Ghafouri-Kesbi et al, 2015;Gudex et al, 2009;Näsholm, 2004) and goats (Baneh et al, 2021). Poissant et al (2010) reported that, except for fitness-related traits, genetic correlations between homologous traits expressed in males and females were predominantly large and positive, and our results support that observation.…”

Section: Additive Genetic Correlations Between Sexes For Body Weightssupporting

confidence: 89%

“…Estimates of t m quantified the total maternal contribution to body weight and were larger for males than females at birth and weaning, but similar for males and females for W12 and small for W6 and W9 (Table 4). Baneh et al (2021) observed similar increases in 2 p and 2 a for body weights with increasing age in Markhoz goats. Larger 2 a for males, compared to females, for different body weights was also reported in sheep (Ghafouri-Kesbi & Baneh, 2018;Ghafouri-Kesbi & Notter, 2016).…”

Section: Heterogeneity Of Variancessupporting

confidence: 63%

“…Larger 2 a for males, compared to females, for different body weights was also reported in sheep (Ghafouri-Kesbi & Baneh, 2018;Ghafouri-Kesbi & Notter, 2016). Larger estimates of 2 e for body weights in males, compared to females, were observed by Ghafouri-Kesbi and Baneh (2018) and Baneh et al (2021).…”

Section: Heterogeneity Of Variancesmentioning

confidence: 68%

“…Higher estimates of t m for males, compared with females, at birth and weaning in the current study were consistent with higher c 2 values obtained for males, compared with females, by Ghafouri-Kesbi and Baneh (2018). Higher maternal heritabilities for growth traits in males also have been reported in sheep (Ghafouri-Kesbi et al, 2015;Gudex et al, 2009;Näsholm, 2004) and goats (Baneh et al, 2021). Drake and Walker (2004) further postulated that differences in maternal effects between male and female yeanlings could be due to prenatal events and epigenetic modifications that affect postpartum body weights.…”

Section: Heterogeneity Of Variancesmentioning

confidence: 89%

“…Van der Heide et al (2016) reported that 68, 80 and 85 males were common to the top 100 males in chickens, beef and pigs, respectively, when EBV were determined using sex-joint and sex-specific multi-trait models. Baneh et al (2021) reported that only 6.6 of top 10 but 82 of the top 100 males were common when EBV for Markhoz goats were determined using sexjoint and sex-specific multi-trait analyses.…”

Section: Correlations Of Ebv From Sex-joint Versus Sex-specific Modelsmentioning

confidence: 99%

See 4 more Smart Citations

Genetic analysis of sexual dimorphism in growth of Jamunapari goats of India

Mandal

Baneh

Rout

et al. 2022

J Animal Breeding Genetics

Self Cite

View full text Add to dashboard Cite

A genetic study of sexual size dimorphism (SSD) in Jamunapari goats was carried out to identify differences between sexes in genetic control of body weight at birth and at 3 (weaning), 6, 9 and 12 months of age. A total of 6,687 kids out of 264 sires and 1,704 dams were used in the study. Estimates of SSD were derived from male:female body weight ratios. Males were 9.9, 6.8, 9.3, 13.7 and 16.8% heavier than females at birth and at 3, 6, 9 and 12 months of age, respectively, demonstrating modest SSD. Phenotypic standard deviations were larger for male kids and tended to be proportional to body weight means. However, males also had somewhat greater phenotypic coefficients of variation and total resemblance among relatives. Additive direct genetic correlations between body weights of males and females exceeded 0.96 at birth and weaning. Corresponding additive maternal correlations exceeded 0.99. Additive direct correlations between sexes were somewhat less than unity for postweaning weights but exceeded 0.80 in multi‐trait models. Our results indicated that body weights could be treated as the same trait in males and females, but the use of different phenotypic variances for the two sexes would improve accuracies of breeding value predictions. High genetic correlations between body weights in males and females suggest limited opportunity to use sex‐specific selection to create or modify SSD or create divergent body weight phenotypes between sexes.

show abstract

Section: Additive Genetic Correlations Between Sexes For Body Weightssupporting

confidence: 89%

Section: Heterogeneity Of Variancessupporting

confidence: 63%

Section: Heterogeneity Of Variancesmentioning

confidence: 68%

Section: Heterogeneity Of Variancesmentioning

confidence: 89%

Section: Correlations Of Ebv From Sex-joint Versus Sex-specific Modelsmentioning

confidence: 99%

See 3 more Smart Citations

Genetic analysis of sexual dimorphism in growth of Jamunapari goats of India

Mandal

Baneh

Rout

et al. 2022

J Animal Breeding Genetics

Self Cite

View full text Add to dashboard Cite

show abstract

Study of sexual dimorphism in growth traits of Sangari lambs: between-sex heritability and inter-sex correlations

Ehsaninia,

Zandi

2024

Preprint

View full text Add to dashboard Cite

This research investigated the genetic and phenotypic characteristics of sexual dimorphism (SD) for body weights at birth (BW), weaning (WW), 6 months (6MW), 9 months (9MW), and 12 months (12MW) in Sangsari sheep. The records were retrieved from a dataset collected between 1986 and 2016 at the Sangsari sheep breeding station. The GLM method in the SAS program was applied to evaluate the environmental factors. The genetic analyses were accomplished using the AI-REML method of the WOMBAT software. Six bivariate animal models without or with maternal effects were used for genetic assessment traits in male and female lambs. Male lambs weighed more than female lambs and a weight difference of 0.21 kg (7.22%) at birth increased to 3.91 kg (13.95%) at yearling age. Levels of sexual dimorphism were relatively low and varied from 1.07 for BW to 1.16 for 12MW. For all traits except 12MW, \({{\sigma }}_{\text{a}}^{2}\), \({{\sigma }}_{\text{e}}^{2}\), \({{\sigma }}_{\text{P}}^{2}\), \({\text{h}}^{2}\), and \({\text{C}\text{V}}_{\text{a}}\) were higher in male lambs. Heritabilities for BW, 3MW, 6MW, and 9MW in male lambs were 3.18%, 4.53%, 24.05%, and 18.97% more than female lambs. For 12MW, the heritability of females was 23.83% more than males. Direct genetic correlations (rg) between the sexes ranged from 0.89 for 6MW to 1.00 for 9MW and 12MW, indicating that selection for body weight in males would result in a correlated response in females and consequently, would prevent phenotypic divergence. Cross-sex maternal permanent environment correlations (rpe) were 0.71 for 6MW and 0.98 for 3MW and 9MW. The values of rg and rpe for 6MW differed from 1.00, implying the presence of sexual dimorphism for additive genetic effects and maternal effects on 6MW.

show abstract

Genetic analysis of sexual size dimorphism in Markhoz goat

Cited by 2 publications

References 31 publications

Genetic analysis of sexual dimorphism in growth of Jamunapari goats of India

Genetic analysis of sexual dimorphism in growth of Jamunapari goats of India

Study of sexual dimorphism in growth traits of Sangari lambs: between-sex heritability and inter-sex correlations

Contact Info

Product

Resources

About