Article
Agriculture, Dairy & Animal Science
Sheikh Firdous Ahmad, Nusrat Nabi Khan, Nazir Ahmad Ganai, Syed Shanaz, Mubashir Ali Rather, Safeer Alam
Summary: The study aimed to elucidate genetic parameters for body weight traits of lambs from Corriedale sheep population at different ages. Analysis of data collected from 6874 lambs born over a span of 49 years showed moderate heritability for some traits, high genetic correlations between most traits, and varying phenotypic correlations among trait combinations. Selection based on early weight traits may lead to a moderate genetic response in Corriedale sheep.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Psychiatry
Judith Schmitz, Mo Zheng, Kelvin F. H. Lui, Catherine McBride, Connie S. -H. Ho, Silvia Paracchini
Summary: The heritability of hand, foot, and eye preference was investigated, with parental left-side preference found to increase the chance of left-sidedness in the offspring. Quantitative multidimensional laterality phenotypes were found to capture the underlying genetics better than binary traits.
TRANSLATIONAL PSYCHIATRY
(2022)
Article
Agriculture, Dairy & Animal Science
H. H. Hu, F. Li, T. Mu, L. Y. Han, X. F. Feng, Y. F. Ma, Y. Jiang, X. S. Xue, B. Q. Du, R. R. Li, Y. Ma
Summary: The increase of longevity aims to reduce involuntary culling rates by evaluating the (co)variance components of longevity and fertility traits. Strong correlations exist between herd life (HL), productive life (PL), and various fertility traits. While heifer fertility traits show medium to high heritability, cow fertility traits exhibit low heritability. Indirect indicators for dairy cow longevity include days open (DO), interval from calving to first insemination (ICF), interval from first to last inseminations in cow (IFLc), and calving ease (CE).
Article
Agriculture, Dairy & Animal Science
Bruno Delphino Medrado, Victor Breno Pedrosa, Luis Fernando Batista Pinto
Summary: A meta-analysis was conducted to estimate genetic parameters for economic traits in buffaloes, including growth, reproduction, and milk production. The study found sufficient genetic variation in these traits to be included in buffalo selection programs.
Article
Agriculture, Dairy & Animal Science
Bruno Delphino Medrado, Victor Breno Pedrosa, Luis Fernando Batista Pinto
Summary: This study conducted a meta-analysis to estimate heritability and genetic correlations for 35 traits in sheep, showing that the genetic parameters obtained can be utilized in breeding programs under diverse environmental conditions. The results support the development of sheep breeding programs, particularly in developing and underdeveloped countries where sheep farming plays a significant role in agriculture.
Article
Agriculture, Dairy & Animal Science
Javier Fernandez Alvarez, Francisco Javier Navas Gonzalez, Jose Manuel Leon Jurado, Carlos Iglesias Pastrana, Juan Vicente Delgado Bermejo
Summary: Murciano-Granadina goats have improved dairy-linked conformation traits while maintaining adaptability to the environment. Evaluation of genetic and phenotypic parameters for each trait can help design a selection strategy that maximizes dairy potential and efficiency. Selection of major areas may require restructuration of current scales. This study provides important insights for the breeding program and international competitiveness of Murciano-Granadina goats.
Article
Biology
Maria Clara Castellanos, Javier Montero-Pau, Peio Ziarsolo, Jose Miguel Blanca, Joaquin Canizares, Juli G. Pausas
Summary: The variation in floral traits across angiosperms is often seen as the result of adaptation to pollinators, but this study found no evidence of pollinator-mediated selection on flowers in wild populations. The study suggests that periods of stasis in flower traits may be caused by stabilizing selection and low trait heritability. The findings show that while the current environment may not provide selection pressures, heritable variation remains for future selection.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Md Mahmudul Hasan Khan, Mohd Y. Rafii, Shairul Izan Ramlee, Mashitah Jusoh, Md Al Mamun
Summary: The study analyzed the characteristics of Bambara groundnuts and identified high yielding genotypes, as well as genetic parameters. Significant variations in agronomic traits were found among different landraces, with some traits showing strong association with yield. Genotypes in certain groups showed promising traits for further breeding purposes.
SCIENTIFIC REPORTS
(2021)
Review
Agriculture, Dairy & Animal Science
S. Mucha, F. Tortereau, A. Doeschl-Wilson, R. Rupp, J. Conington
Summary: Genetic selection for production traits in livestock has been successful, but there is a need to improve resilience and efficiency in the face of environmental and disease challenges. This study conducted a meta-analysis to examine the genetic parameters of production, efficiency, and health traits in sheep and goats. The results showed variations in heritability among different traits and species, and evidence of genetic antagonism between production and health in dairy sheep and goats. Simultaneously improving efficiency and health in breeding programs is feasible, but further research is needed to understand the trade-offs between these traits.
Article
Reproductive Biology
Jamuna Valsalan, Tina Sadan, Kulangara Anilkumar, T. V. Aravindakshan
Summary: The study evaluates the correlations and covariances of fertility and production traits in crossbred cattle of Kerala, finding that daughters pregnancy rate (DPR) has low heritability and unfavorable association with milk production traits.
Article
Materials Science, Textiles
Sheikh Firdous Ahmad, Mubashir Ali Rather, Syed Shanaz, Nusrat Nabi Khan, Nazir Ahmad Ganai
Summary: The present study utilized a multivariate animal model to analyze the genetic parameters of fiber traits in Kashmir Merino sheep population. The results showed that these traits have a genetic basis and positive genetic correlations exist between different traits, ranging from moderate to high.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Agriculture, Dairy & Animal Science
Sheikh Firdous Ahmad, Nusrat Nabi Khan, Dibyendu Chakraborty, Mubashir Ali Rather, Syed Shanaz, Safeer Alam, Nazir Ahmad Ganai
Summary: The study aimed to estimate genetic parameters of different fibre traits in Rambouillet sheep population using a multi-trait animal model. The results showed that fibre diameter was moderately heritable, suggesting potential for improvement through selection.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
Navid Ghavi Hossein-Zadeh
Summary: It is essential to have sound estimates of genetic parameters for economically important traits in animal breeding plans. This study conducted a meta-analysis to combine different published heritability estimates and genetic correlations between conformation traits in horses, revealing substantial variability among these estimates. The results of this study can be applicable in breeding designs when reliable estimates are not available for conformation traits in horse populations.
Article
Forestry
Jing Xu, Ulrik Brauner Nielsen, Fikret Isik, Martin Jensen, Ole Kim Hansen
Summary: Genetic analysis of susceptibility to Neonectria neomacrospora and Christmas tree traits in Nordmann fir showed pronounced additive genetic variation and high narrow-sense heritability. Recurrent selection for multiple traits can improve Christmas tree quality.
ANNALS OF FOREST SCIENCE
(2021)
Article
Materials Science, Textiles
Mohammad Al-Mamun, Mohd Rafii, Yusuff Oladosu, Azizah Binti Misran, Zulkarami Berahim, Zaiton Ahmad, Fatai Arolu, Mahmudul Hasan Khan
Summary: Understanding the genetic variability among kenaf mutant lines is important for breeding programs. This study evaluated the genetic diversity and heritability of yield and yield components in kenaf over two planting seasons. The results showed significant differences among qualitative and quantitative traits, and positive correlation between dry fiber weights for most morphological traits. Through clustering and principal component analysis, superior genotypes were identified for future breeding programs. This evaluation can also contribute to the development of reliable selection criteria for kenaf breeding.
JOURNAL OF NATURAL FIBERS
(2022)
Editorial Material
Ecology
Josselin Clo
Article
Ecology
Josselin Clo, Joelle Ronfort, Diala Abu Awad
JOURNAL OF EVOLUTIONARY BIOLOGY
(2020)
Article
Ecology
Josselin Clo, Oystein H. Opedal
Summary: This study relaxes the assumption of additivity in classical theoretical models regarding traits in inbred populations, exploring the effect of dominance on evolution. It is found that dominance components can explain a substantial part of genetic variance in inbred populations, and ignoring these components can lead to an upward bias in predicted response to selection. Additionally, genetic associations can make selfing populations more evolvable in the long term, reconciling theoretical and empirical results.
Article
Ecology
Josselin Clo, Joelle Ronfort, Laurene Gay
Summary: Studying the consequences of hybridization on plant performance in the predominantly selfing species Medicago truncatula showed that hybridization had different effects on fitness proxies within and among populations, with dry mass displaying heterosis and seed production showing outbreeding depression. Family-based analyses revealed that hybrid differentiation was primarily due to dominance and epistasis, with dominance and/or dominant epistatic interactions increasing dry mass but decreasing seed production, and recessive epistatic interactions generally having a positive effect on fitness proxies.
Article
Plant Sciences
Josselin Clo, Filip Kolar
Summary: The study found that whole-genome duplication has various effects on the morphological, cellular, and fitness traits of plants, with short-term effects including an increase in size but a decrease in fitness. However, these effects tend to disappear over time after establishment, with morphological traits persisting but cellular and fitness components reverting back to diploid levels.
AMERICAN JOURNAL OF BOTANY
(2021)
Article
Ecology
Josselin Clo
Summary: Whole-genome duplication has both short-term negative effects and long-term positive effects on the evolutionary potential of populations.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2022)
Article
Plant Sciences
Josselin Clo
Summary: This article summarizes the effects of whole-genome doubling on the heritable variance of quantitative traits and the evolutionary potential of polyploid populations. It proposes methods to understand the consequences of genome doubling on survival probability and to study the effects of shifting ecological niches and life-history traits on populations.
AMERICAN JOURNAL OF BOTANY
(2022)
Article
Ecology
Josselin Clo, Nelida Padilla-Garcia, Filip Kolar
Summary: It is widely believed that successful polyploidy reflects an increased fitness due to whole-genome duplication (WGD), but there are also costs and frequency-dependent selection in neo-polyploid lineages. The idea that polyploidy can be fixed by genetic drift is underexplored in the literature. By building a theoretical model, the researchers found that polyploidy can only fix in a population by chance when genetic drift is stronger than natural selection, even if polyploidy confers a selective advantage.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2022)
Article
Ecology
Nelida Padilla-Garcia, Gabriela Sramkova, Eliska Zaveska, Marek Slenker, Josselin Clo, Vojtech Zeisek, Magdalena Lucanova, Ieva Rurane, Filip Kolar, Karol Marhold
Summary: This study investigates the impact of evolutionary processes on niche differentiation of autopolyploids in Arabidopsis arenosa. Through cytotyping and considering the evolutionary history, the study reveals that the niche shift of tetraploids is not driven by whole-genome duplication per se, but rather reflects dynamic post-WGD evolution, including migration and introgression with other diploid lineages. These findings highlight the importance of evolutionary processes following WGD in the adaptation of polyploids to challenging environments.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Biology
Josselin Clo, Filip Kolar
Summary: Through a meta-analysis within angiosperm species, it was found that the effects of polyploidy on inbreeding depression are complex and depend on the time since polyploidization. Young polyploid lineages have less inbreeding depression, while natural polyploid lineages are intermediate and have more inbreeding depression compared to synthetic neopolyploids.