Results 41 to 50 of about 224 (122)

Diversity Under Pressure: Long‐Term Genetic Decline in California's Central Valley Chinook Salmon ESA Listed Runs

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Chinook salmon in the Central Valley of California have notable intraspecific diversity because it is the only place where four distinct migration timings (Winter, Spring, Fall, Late‐fall) co‐occur. The Winter run is listed as Endangered and the Spring run is listed as Threatened under the Endangered Species Act. To quantify temporal changes in genetic
E. E. Collins, T. Q. Thompson, P. Goertler, M. R. Baerwald, M. H. Meek   +4 more
wiley   +1 more source

Optimizing mating strategies to maximize genetic diversity in the mhorr gazelle (Nanger dama mhorr) ex situ breeding program

BMC Zoology
To minimize coancestry among the offspring by equalising parents’ contributions is currently one of the most widely used methods to maximize the genetic diversity in conservation programs of threatened species.
Sonia Domínguez, Juan Pablo Gutiérrez, Eulalia Moreno, Isabel Cervantes   +3 more
doaj   +1 more source

Mating schemes for optimum contribution selection with constrained rates of inbreeding

Genetics Selection Evolution, 2000
The effect of non-random mating on genetic response was compared for populations with discrete generations. Mating followed a selection step where the average coancestry of selected animals was constrained, while genetic response was maximised.
Meuwissen Theo HE, Sonesson Anna K
doaj   +1 more source

Conservation implications of low contemporary connectivity along the Mid‐Atlantic Ridge in hydrothermal vent gastropods

Conservation Biology, Volume 40, Issue 4, August 2026.
Abstract Polymetallic sulfide deposits produced at hydrothermal vent fields are targets for mining exploitation along the Mid‐Atlantic Ridge, threatening the functioning and resilience of vent ecosystems that provide multiple ecosystem services. Knowledge about connectivity between vents will inform conservation practices.
E. Portanier, A. Tran Lu Y, F. Pradillon, C. Daguin‐Thiébaut, S. Ruault, P. Collins, E. Omnes, S. Fuchs, J. Carlsson, D. Jollivet, M. Matabos   +10 more
wiley   +1 more source

Putatively Adaptive and Genome‐Wide Genetic Variation Often Rank Populations as Similarly Distinctive

Molecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT Identifying which populations within species to prioritize to maintain genetic diversity is challenging. Due to its direct connection to current patterns of adaptation and presumed connection to adaptive capacity, some researchers advocate prioritizing adaptive variation.
Avneet K. Chhina, Philippe Fernandez‐Fournier, Jayme M. M. Lewthwaite, Tom R. Booker, Arne Mooers   +4 more
wiley   +1 more source

Improving Pedigree-based Linkage Analysis by Estimating Coancestry Among Families [PDF]

Statistical Applications in Genetics and Molecular Biology, 2012
We present a method for improving the power of linkage analysis by detecting chromosome segments shared identical by descent (IBD) by individuals not known to be related. Existing Markov chain Monte Carlo methods sample descent patterns on pedigrees conditional on observed marker data.
Chris, Glazner, Elizabeth Alison, Thompson   +1 more
openaire   +2 more sources

Maintenance of genetic diversity in subdivided populations using genomic coancestry matrices

Molecular Ecology Resources, 2023
AbstractFor both undivided and subdivided populations, the consensus method to maintain genetic diversity is the Optimal Contribution (OC) method. For subdivided populations, this method determines the optimal contribution of each candidate to each subpopulation to maximize global genetic diversity (which implicitly optimizes migration between ...
Elisabeth Morales‐González, Beatriz Villanueva, Miguel Á. Toro, Jesús Fernández   +3 more
openaire   +3 more sources

Challenging Patterns of Fine‐Scale Genetic Structure in Galicia and East‐to‐West Genetic Divergence Across the Iberian Peninsula—When Technical Batches Rewrite History

FASEB BioAdvances, Volume 8, Issue 7, July 2026.
Findings reported by Bycroft et al. [1] for the Iberian Peninsula, including ultra‐fine population structure in Galicia, East–West genetic differentiation, and North African ancestry associated with the ‘Reconquista’ period, may be influenced by technical artifacts and sampling limitations within the EPICOLON Phase I dataset.
Jacobo Pardo‐Seco, Alberto Gómez‐Carballa, Conrado Martínez‐Cadenas, Federico Martinón‐Torres, Antonio Salas   +4 more
wiley   +1 more source

Analysis of population structure and genetic diversity in low-variance Saimaa ringed seals using low-coverage whole-genome sequence data

STAR Protocols, 2023
Summary: This protocol demonstrates how a fragmented reference genome and low-coverage sequencing data can be efficiently utilized for population genetic analyses of a species with highly reduced genetic diversity.
Emmi Olkkonen, Ari Löytynoja
doaj   +1 more source

Genomic Data Describe Population Structure but Struggle to Estimate Directed Connectivity Networks

Molecular Ecology Resources, Volume 26, Issue 5, July 2026.
ABSTRACT The movement of individuals between fragmented populations, known as population connectivity, plays a crucial role in population persistence, genetic structure and, ultimately, the definition of a species distribution range. Advances in molecular biology have made genomic data readily accessible, even for non‐model species, and they are ...
Camille Sant, Didier Forcioli, Cécile Fauvelot, Jean‐Olivier Irisson   +3 more
wiley   +1 more source