Article
Biochemistry & Molecular Biology
Victoria R. Franks, Rose Thorogood, Patricia Brekke
Summary: Across the animal kingdom, little is known about the development of social environments, particularly in wild populations. This study examines how associations among young animals form and are influenced by environmental or genetic conditions established by parents. The results suggest that the natal environment created by parents, rather than genetic condition, establishes the foundation for social associations in offspring.
Article
Biodiversity Conservation
Mikael Akesson, Oystein Flagstad, Jouni Aspi, Ilpo Kojola, Olof Liberg, Petter Wabakken, Hakan Sand
Summary: The study found that although the genetic diversity increased among Scandinavian wolves, it has not reached the levels found in Finland and Russia, with immigration from both countries confirmed. However, low genetic differentiation between Finnish and Russian wolves made it difficult to determine the origin of immigrant wolves, and the assumption that immigrants are unrelated is not advisable as some were found to be closely related. Management actions facilitating transboundary dispersal are highlighted as necessary for the long term viability of wolves in Northern Europe.
CONSERVATION GENETICS
(2022)
Article
Multidisciplinary Sciences
Lidia Escoda, Oliver Hawlitschek, Jorge Gonzalez-Esteban, Jose Castresana
Summary: Recently, populations with very low genetic diversity have been found, some of which can persist in the long term, while others may face extinction. This study focuses on the Iberian desman population, which exhibits extremely low heterozygosity values and high levels of inbreeding. Some individuals in the population appear to be genetically identical, posing challenges for genetic identification and parentage analysis. However, characterizing these genetically impoverished populations and improving genomic methodologies for their study are crucial for scientific and conservation purposes.
SCIENTIFIC REPORTS
(2022)
Article
Agriculture, Dairy & Animal Science
Shweta Sahoo, Rani Alex, Vikas Vohra, Sabyasachi Mukherjee, G. R. Gowane
Summary: This study investigated the genetic diversity and inbreeding situation of Saanen x Beetal goats. The results showed a high level of inbreeding in the reference population, with only a few ancestors contributing to the genetic diversity. Inbreeding had non-significant effects on reproductive traits, except for age at first service and age at first kidding. To reduce inbreeding and increase genetic diversity, a stratified breeding plan and the introduction of unrelated crosses should be followed.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Biochemical Research Methods
Magnus D. Vigeland
Summary: QuickPed is a user-friendly pedigree tool aimed at researchers, case workers, and teachers. It contains features not found in other similar tools and makes advanced relatedness analyses available for non-bioinformaticians.
BMC BIOINFORMATICS
(2022)
Article
Fisheries
Mayuree Puttasan, Mingkwan Nipitwattanaphon, Wikrom Rungsin, Akarapong Swatdipong
Summary: This study investigated the genetic diversity of giant freshwater prawn populations in hatcheries and the wild using microsatellite loci. The results showed no significant difference in genetic diversity between hatchery and wild populations. Moreover, the prawns exhibited a preference for mating with partners from different broodstocks, which is important for maintaining genetic diversity in the populations. This is the first report on inbreeding avoidance in giant freshwater prawns, and future studies should further explore how prawns recognize partners from different broodstocks.
FISHERIES RESEARCH
(2023)
Article
Veterinary Sciences
Agnieszka Bartnikowska, Joanna Kania-gierdziewicz
Summary: The aim of the study was to analyze the impact of inbreeding on the frequency of hereditary diseases and the number of genetically tested dogs. The relationship between inbreeding and genetic testing for PLL eye disease was found to be significant. The occurrence of eye disease carriers was not affected by sex or the level of inbreeding, although further research is needed. It was found that most of the dogs had related parents and genetic defects, and breeders often used related dogs, resulting in reduced genetic diversity and hereditary diseases. Publishing DNA-test results should be encouraged for the health of the Chinese Crested dog breed.
MEDYCYNA WETERYNARYJNA-VETERINARY MEDICINE-SCIENCE AND PRACTICE
(2023)
Article
Ecology
Jinliang Wang
Summary: This study introduces a new method to jointly estimate relatedness and allele frequencies from multi-locus genotype data, which is less biased and more accurate than previous methods, especially suitable for analyzing small samples or samples with a strong genetic structure.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Fisheries
Jiafeng Fang, Ziqiang Han, Qi Li
Summary: Inbreeding in Pacific oysters was found to have negative effects on growth and survival traits, leading to lower heritability in growth traits but no significant impact on survival rate heritability. This suggests that there is potential for selection in survival traits in inbred populations, which could be valuable for shellfish breeding programs.
AQUACULTURE REPORTS
(2021)
Article
Agriculture, Dairy & Animal Science
Shweta Sahoo, Rani Alex, Vikas Vohra, Sabyasachi Mukherjee, G. R. Gowane
Summary: The aim of this study was to investigate the genetic diversity and population structure in the Alpine x Beetal goat population. The results showed that the average inbreeding coefficient and average relatedness were 4.77% and 7.84% for the whole population, and 9.65% and 11.98% for the reference population, respectively. The high inbreeding coefficient and average relatedness in the reference population indicated the impact of a closed gene pool, emphasizing the need for immediate intervention to manage genetic diversity.
SMALL RUMINANT RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Lisa Dickel, Peter Arcese, Pirmin Nietlisbach, Lukas F. Keller, Henrik Jensen, Jane M. Reid
Summary: Immigration into small recipient populations is expected to alleviate inbreeding and increase genetic variation, with immigrants typically being outbred and unrelated to existing natives and each other. This can facilitate population persistence through genetic and/or evolutionary rescue.
Article
Fisheries
Matthew G. Hamilton, Wagdy Mekkawy, Benoy K. Barman, Md Badrul Alam, Manjurul Karim, John A. H. Benzie
Summary: Silver carp is an important aquaculture species in Bangladesh and globally. The genetic composition of the species in the country is complex and imperfectly understood. Through a genetic improvement program, actual founders were identified and a valid pedigree was established for future breeding and inbreeding management.
Article
Biotechnology & Applied Microbiology
Jose Marcelo Soriano Viana, Antonio Augusto Franco Garcia
Summary: Additive variance is generally the most important component of genotypic variance. LD and inbreeding have a significant effect on the magnitude of the genetic variances and covariances. In general, the additive x additive variance is the most important component of epistatic variance.
Article
Biodiversity Conservation
Stephen L. Webb, Randy W. DeYoung, Stephen Demarais, Bronson K. Strickland, Kenneth L. Gee
Summary: The study suggests that genetic relatedness has minimal impact on antler characteristics and the differences in antler quality cannot be explained by inbreeding or heterozygosity.
Article
Allergy
Haritz Irizar, Yoojin Chun, Zoe Arditi, Anh Do, Galina Grishina, Alexander Grishin, Alfin Vicencio, Supinda Bunyavanich
Summary: This study examined the associations between host genetics and nasal microbiome composition. The results showed that host genetics has little influence on nasal microbiome composition.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2022)
