Article
Multidisciplinary Sciences
Karolina Machova, Pavla Struncova, Jan Calta, Ladislav Tichy, Lubos Vostry
Summary: This study analyzed the pedigree of the European bison population and found that almost 100 years after the rescue measures were taken, the reference population showed high levels of genetic variability and inbreeding. However, there was no significant increase in new inbreeding. The population remained genetically diverse and showed good fitness.
Article
Biochemistry & Molecular Biology
Irene Novo, Noelia Perez-Pereira, Enrique Santiago, Humberto Quesada, Armando Caballero
Summary: The availability of high-density markers allows the estimation of historical effective population size. Recent refinement methods have been shown to be accurate with simulation data and have been applied to real data of various species. An experimental design with Drosophila melanogaster was carried out to test the method, which showed generally good performance. The limitations of the method and its application were discussed.
MOLECULAR ECOLOGY RESOURCES
(2023)
Article
Biodiversity Conservation
K. Bilgmann, N. Armansin, A. L. Ferchaud, E. Normandeau, L. Bernatchez, R. Harcourt, H. Ahonen, A. Lowther, S. D. Goldsworthy, A. Stow
Summary: This study found that the endangered Australian sea lion has experienced genetic bottlenecks, leading to reduced effective population sizes and loss of genetic variation. Future population declines may exacerbate inbreeding risk, making the species more vulnerable.
ANIMAL CONSERVATION
(2021)
Article
Veterinary Sciences
Francesco Perini, Irene Cardinali, Simone Ceccobelli, Anthony Gruppetta, Carlos San Jose, Mario Cosenza, Nicolo Musso, Amparo Martinez, Asmaa M. Abushady, Luis Monteagudo, Luigi Liotta, Hovirag Lancioni, George Attard, Emiliano Lasagna
Summary: This study investigates the genomic and mitochondrial levels of hound-like dog breeds in the Mediterranean Basin, suggesting a common ancient origin. However, the ancient relationship with Egyptian dogs cannot be completely excluded due to limited evidence. Further research is needed to confirm the complex history of these Mediterranean dog breeds.
RESEARCH IN VETERINARY SCIENCE
(2023)
Article
Biodiversity Conservation
Noelia Perez-Pereira, Jinliang Wang, Humberto Quesada, Armando Caballero
Summary: This article investigates the influence of purging on the establishment of a minimum viable population (MVP) for long-term survival. Computer simulations were used to study extinction times and loss of genetic diversity for different effective population sizes. The results indicate that purging can reduce the MVP needed for a population to persist in the long term, especially for species with higher reproductive rates.
BIODIVERSITY AND CONSERVATION
(2022)
Article
Biochemistry & Molecular Biology
Patricia Pecnerova, Edana Lord, Genis Garcia-Erill, Kristian Hanghoj, Malthe Sebro Rasmussen, Jonas Meisner, Xiaodong Liu, Tom van der Valk, Cindy G. Santander, Liam Quinn, Long Lin, Shanlin Liu, Christian Caroe, Fredrik Dalerum, Anders Gotherstrom, Johannes Masviken, Sergey Vartanyan, Katrine Raundrup, Amal Al-Chaer, Linett Rasmussen, Christina Hvilsom, Mads Peter Heide-Jorgensen, Mikkel-Holger S. Sinding, Peter Aastrup, Peter J. Van Coeverden de Groot, Niels Martin Schmidt, Anders Albrechtsen, Love Dalen, Rasmus Heller, Ida Moltke, Hans Redlef Siegismund
Summary: Genomic studies of species threatened by extinction provide crucial information about evolutionary mechanisms and genetic consequences of population declines and bottlenecks. Studying species that thrive despite past declines can offer insights into how species avoid extinction.
Article
Agriculture, Dairy & Animal Science
Ante Kasap, Jelena Ramljak, Marija Spehar
Summary: The study examined the effective population size and connectedness between flocks of dairy Istrian sheep, revealing a progressive loss of genetic variability and overall low connectedness. To ensure the long-term survival and self-sufficiency of the breed, genetic links between different flocks need to be strengthened.
Article
Biodiversity Conservation
Gregory A. Wilson, Tara L. Fulton, Karsten Heuer
Summary: The tragic decline of plains bison in North America is well known. Banff National Park in Canada still has suitable habitat for bison, and efforts have been made to reintroduce them. Genetic diversity has been considered in the selection process of the founders for the reintroduction, although adjustments were made due to aggressive behavior. The newly established bison herd in Banff NP is one of the most diverse in Canada.
Article
Evolutionary Biology
Langqing Liu, Mirte Bosse, Hendrik-Jan Megens, Manon de Visser, Martien A. M. Groenen, Ole Madsen
Summary: Human disturbance and climate change have a negative impact on habitat integrity and size, leading to population decline and habitat fragmentation for wild fauna and flora. Analysis of the genomic data of the pygmy hog reveals a very small historical population size with no recent inbreeding, but evidence of harmful mutation accumulation exceeding purifying selection. Care must be taken in conservation efforts to prevent further inbreeding depression and mitigate potential environmental changes.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Agriculture, Dairy & Animal Science
Katri Sarviaho, Pekka Uimari, Katja Martikainen
Summary: Genomic selection has been utilized in dairy cattle breeding to predict breeding values accurately and increase genetic gain. However, there is a concern that genetic diversity may decrease due to increased inbreeding rate and decreased effective population size. This research aimed to estimate the impact of genomic selection on inbreeding rate and effective population size using both pedigree and genomic data.
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2023)
Article
Multidisciplinary Sciences
Danielle Stephens, Peter J. S. Fleming, Emma Sawyers, Tim P. Mayr
Summary: The Australian dingo, a recent addition to the Australian fauna, has spread rapidly across the continent and interbred with modern dogs. Although there have been speculations about their entry to Australia and biogeographic effects, few studies have been conducted on their population structure. This study investigated the ancestry and population structure of free-living dogs in western Victoria and found that they were hybrids with high dingo ancestry. The population showed no evidence of admixture with other populations and had low genetic diversity.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Kang-Rae Kim, Yeong-Ho Kwak, Mu-Sung Sung, Seong-Jang Cho, In-Chul Bang
Summary: The endangered black shinner Pseudopungtungia nigra is endemic to Korea, specifically the Geumgang River, Mangyeonggang River, and Ungcheoncheon Stream. Genetic analysis revealed complex population structure and migration. Conservation efforts are needed to protect the black shinner, especially in the Ungcheoncheon Stream population.
SCIENTIFIC REPORTS
(2023)
Article
Agriculture, Dairy & Animal Science
O. Jarnecka, E. A. Bauer, W. Jagusiak
Summary: This study described the population structure and inbreeding level of Polish Red Cattle (PRC), with an average inbreeding of 4% and 23.8% inbred animals. The results indicate the potential disruption of the balance in small populations like PRC, highlighting the need for continuous monitoring of endangered populations.
Article
Agriculture, Dairy & Animal Science
Jorge Hidalgo, Alberto Cesarani, Andre Garcia, Pattarapol Sumreddee, Neon Larios, Enrico Mancin, Jose Guadalupe Garcia, Rafael Nunez, Rodolfo Ramirez
Summary: The goal of genetic selection is to improve genetic progress, but it can lead to inbreeding and accumulation of harmful alleles, reducing genetic diversity. The study on Mexican Romosinuano cattle revealed a decreased effective population size, genetic bottlenecks, and declining genetic diversity as potential challenges.
Article
Biodiversity Conservation
Romualdas Lapickis, Loreta Griciuviene, Arturas Kibisa, Indre Lipatova, Asta Aleksandraviciene, Irma Razanske, Marlena Wojciechowska, Marta Kloch, Wanda Olech, Algimantas Paulauskas
Summary: The genetic diversity and structure of European bison in Lithuania were examined using microsatellite markers and mtDNA sequences. The study found that the Lithuanian population has a different genetic structure compared to populations in Poland, Germany, and Sweden. It also revealed low genetic variation in the Lithuanian bison population, with two haplotypes observed in the mtDNA sequences.