scholarly journals Spatial population genetics in heavily managed species: Separating patterns of historical translocation from contemporary gene flow in white‐tailed deer

2021 ◽  
Author(s):  
Tyler K. Chafin ◽  
Zachery D. Zbinden ◽  
Marlis R. Douglas ◽  
Bradley T. Martin ◽  
Christopher R. Middaugh ◽  
...  
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Spatial Population ◽  
Contemporary Gene Flow

scholarly journals Population genetics of Southern Hemisphere tope shark (Galeorhinus galeus): Intercontinental divergence and constrained gene flow at different geographical scales

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0184481 ◽  
Author(s):  
Aletta E. Bester-van der Merwe ◽  
Daphne Bitalo ◽  
Juan M. Cuevas ◽  
Jennifer Ovenden ◽  
Sebastián Hernández ◽  
...  
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Southern Hemisphere ◽  
Galeorhinus Galeus

scholarly journals Genetic structure and historical and contemporary gene flow of Astyanaxmexicanus in the Gulf of Mexico slope: a microsatellite-based analysis

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10784
Author(s):  
Rodolfo Pérez-Rodríguez ◽  
Sarai Esquivel-Bobadilla ◽  
Adonaji Madeleine Orozco-Ruíz ◽  
José Luis Olivas-Hernández ◽  
Francisco Javier García-De León
Keyword(s):  
Gene Flow ◽  
Gulf Of Mexico ◽  
Microsatellite Loci ◽  
Evolutionary History ◽  
Population Analysis ◽  
Morphological Variability ◽  
High Capacity ◽  
Genetic Population ◽  
Contemporary Gene Flow ◽  
Taxonomic Uncertainty

Background Astyanax mexicanus from the river basins of the Gulf of Mexico slope are small freshwater fish that usually live in large groups in different freshwater environments. The group is considered successful due to its high capacity for dispersal and adaptation to different habitats, and the species present high morphological variability throughout their distribution in Mexico. This has produced the most extreme morphotype of the group; the hypogeous or troglobite, which has no eyes or coloration, and is probably the cause of taxonomic uncertainty in the recognition of species across the entire range. Most studies of A. mexicanus have mainly focused on cave individuals, as well as their adjacent surface locations, providing an incomplete evolutionary history, particularly in terms of factors related to dispersal and the potential corridors used, barriers to gene flow, and distribution of genetic variability. The aim of the present study is to determine the population structure and the degree and direction of genetic flow in this complex taxonomic group, incorporating geographic locations not previously included in analyses using microsatellite loci. Our aim is to contribute to the knowledge of the intricate evolutionary history of A. mexicanus throughout most of its range. Methods The present study included a set of several cave and surface locations of A. mexicanus, which have been widely sampled along the Gulf of Mexico slope, in a genetic population analysis using 10 microsatellite loci. Results Ten genetic populations or lineages were identified. In these populations, gene flow was recorded at two time periods. Historical gene flow, both inter and intra-basin, was observed among surface populations, from surface to cave populations, and among cave populations, whereas recording of contemporary gene flow was limited to intra-basin exchanges and observed among surface populations, surface to cave populations, and cave populations.

scholarly journals Molecular markers applying in forest trees gene pool conservation

2009 ◽  
pp. 101-113
Author(s):  
Jelena Milovanovic ◽  
Mirjana Sijacic-Nikolic
Keyword(s):  
Population Genetics ◽  
Molecular Markers ◽  
Gene Flow ◽  
Gene Pool ◽  
Statistical Power ◽  
Forest Trees ◽  
Effective Population ◽  
Migration Patterns ◽  
Geographic Diversity ◽  
Marker Loci

Many studies performed during the last years demonstrated the usefulness of neutral molecular markers in the field of conservation and population genetics of forest trees, in particular to understand the importance of migration patterns in shaping current genetic and geographic diversity and to measure important parameters such as effective population size, gene flow and past bottleneck. During the next years, a large amount of data at marker loci or at sequence level is expected to be collected, and to become excellent statistical power for the assessment of biological and evolutionary value.

Population Genetics and Gene Flow of the Common Tern

The Condor ◽  
1990 ◽  
Vol 92 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Sherman L. Burson
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Common Tern ◽  
The Common

scholarly journals Fine-scale landscape genetics unveiling contemporary asymmetric movement of red panda (Ailurus fulgens) in Kangchenjunga landscape, India

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Supriyo Dalui ◽  
Hiren Khatri ◽  
Sujeet Kumar Singh ◽  
Shambadeb Basu ◽  
Avijit Ghosh ◽  
...  
Keyword(s):  
Gene Flow ◽  
Landscape Connectivity ◽  
Anthropogenic Activities ◽  
Clustering Algorithms ◽  
Area Network ◽  
Fine Scale ◽  
Contemporary Gene Flow ◽  
Red Panda ◽  
Population Structuring ◽  
Ailurus Fulgens

Abstract Wildlife management in rapid changing landscapes requires critical planning through cross cutting networks, and understanding of landscape features, often affected by the anthropogenic activities. The present study demonstrates fine-scale spatial patterns of genetic variation and contemporary gene flow of red panda (Ailurus fulgens) populations with respect to landscape connectivity in Kangchenjunga Landscape (KL), India. The study found about 1,309.54 km2 area suitable for red panda in KL—India, of which 62.21% area fell under the Protected Area network. We identified 24 unique individuals from 234 feces collected at nine microsatellite loci. The spatially explicit and non-explicit Bayesian clustering algorithms evident to exhibit population structuring and supported red panda populations to exist in meta-population frame work. In concurrence to the habitat suitability and landscape connectivity models, gene flow results supported a contemporary asymmetric movement of red panda by connecting KL—India in a crescent arc. We demonstrate the structural-operational connectivity of corridors in KL—India that facilitated red panda movement in the past. We also seek for cooperation in Nepal, Bhutan and China to aid in preparing for a comprehensive monitoring plan for the long-term conservation and management of red panda in trans-boundary landscapes.

Isolation and characterisation via 454 sequencing of microsatellites from the tawny frogmouth, Podargus strigoides (Class Aves, Family Podargidae)

2012 ◽  
Vol 60 (2) ◽  
pp. 133
Author(s):  
Fiona E. Hogan ◽  
Marian Weaving ◽  
Gregory R. Johnston
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Microsatellite Markers ◽  
Reproductive Ecology ◽  
454 Sequencing ◽  
Urban Environments ◽  
Shotgun Sequencing ◽  
Target Species ◽  
Single Population ◽  
Polymorphic Microsatellite

We isolated 24 novel polymorphic microsatellite markers from the tawny frogmouth, a nocturnal bird endemic to Australia, which has successfully adapted to urban environments. Initially, 454 shotgun sequencing was used to identify 733 loci with primers designed. Of these, we trialled 30 in the target species of which all amplified a product of expected size. Subsequently, all 30 of these loci were screened for variation in 25 individuals, from a single population in Melbourne, Victoria, Australia. Twenty-eight loci were polymorphic with observed heterozygosity ranging from 0.03 to 0.96 (mean 0.58) and the number of alleles per locus ranged from 2 to 18 (average of 6.5); we confirmed that 24 loci conformed to Hardy–Weinberg expectations. The 24 loci identified here will be sufficient to unequivocally identify individuals and will be useful in understanding the reproductive ecology, population genetics and the gene flow amongst localities in urban environments where this bird thrives.

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