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Relevant bibliographies by topics / Gene flow barrier

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Journal articles

Academic literature on the topic 'Gene flow barrier'

Author: Grafiati

Published: 31 August 2024

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Journal articles on the topic "Gene flow barrier"

1

Tavares, Hugo, Annabel Whibley, David L. Field, et al. "Selection and gene flow shape genomic islands that control floral guides." Proceedings of the National Academy of Sciences 115, no. 43 (2018): 11006–11. http://dx.doi.org/10.1073/pnas.1801832115.

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Genomes of closely-related species or populations often display localized regions of enhanced relative sequence divergence, termed genomic islands. It has been proposed that these islands arise through selective sweeps and/or barriers to gene flow. Here, we genetically dissect a genomic island that controls flower color pattern differences between two subspecies of Antirrhinum majus, A.m.striatum and A.m.pseudomajus, and relate it to clinal variation across a natural hybrid zone. We show that selective sweeps likely raised relative divergence at two tightly-linked MYB-like transcription factor

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2

BARTON, N. H. "The effect of a barrier to gene flow on patterns of geographic variation." Genetics Research 90, no. 1 (2008): 139–49. http://dx.doi.org/10.1017/s0016672307009081.

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SummaryExplicit formulae are given for the effects of a barrier to gene flow on random fluctuations in allele frequency; these formulae can also be seen as generating functions for the distribution of coalescence times. The formulae are derived using a continuous diffusion approximation, which is accurate over all but very small spatial scales. The continuous approximation is confirmed by comparison with the exact solution to the stepping stone model. In both one and two spatial dimensions, the variance of fluctuations in allele frequencies increases near the barrier; when the barrier is very

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3

Joannon, B., C. Lavigne, H. Lecoq, and C. Desbiez. "Barriers to Gene Flow Between Emerging Populations of Watermelon mosaic virus in Southeastern France." Phytopathology® 100, no. 12 (2010): 1373–79. http://dx.doi.org/10.1094/phyto-04-10-0118.

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Since 1999, “emerging” (EM) strains of Watermelon mosaic virus (WMV) have been detected in cucurbit crops of southeastern France, probably as a result of recent introductions. Population genetic approaches were used to study the structure of EM isolates in southeastern France and to identify factors involved in their spatial distribution. A population clustering method (SAMOVA) and a maximum-difference algorithm (Monmonier's algorithm) were combined to visualize and quantify barriers to gene flow between populations. Both methods yielded similar results and two main barriers were identified. A

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4

Laetsch, Dominik R., Gertjan Bisschop, Simon H. Martin, Simon Aeschbacher, Derek Setter, and Konrad Lohse. "Demographically explicit scans for barriers to gene flow using gIMble." PLOS Genetics 19, no. 10 (2023): e1010999. http://dx.doi.org/10.1371/journal.pgen.1010999.

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Identifying regions of the genome that act as barriers to gene flow between recently diverged taxa has remained challenging given the many evolutionary forces that generate variation in genetic diversity and divergence along the genome, and the stochastic nature of this variation. Progress has been impeded by a conceptual and methodological divide between analyses that infer the demographic history of speciation and genome scans aimed at identifying locally maladaptive alleles i.e. genomic barriers to gene flow. Here we implement genomewide IM blockwise likelihood estimation (gIMble), a compos

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5

de Abreu Moreira, Patrícia, and G. Wilson Fernandes. "Is the São Francisco River a geographic barrier to gene flow in trees of Handroanthus ochraceus?" Journal of Tropical Ecology 29, no. 3 (2013): 243–50. http://dx.doi.org/10.1017/s0266467413000217.

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Abstract:Many landscape features represent geographic barriers to gene flow, and promote genetic discontinuity. Rivers are effective barriers. However, most studies on this subject have focused on animals and only a few have focused on plants. We studied the genetic structure and gene flow of the tropical tree Handroanthus ochraceus (Bignoniaceae) on both banks of the São Francisco River in a Brazilian seasonally dry tropical forest. The São Francisco is located in eastern Brazil and is 600 m wide at the study site. Our hypothesis was that the river is a geographic barrier to gene flow of H. o

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6

Hu, Xin-Sheng. "Mating system as a barrier to gene flow." Evolution 69, no. 5 (2015): 1158–77. http://dx.doi.org/10.1111/evo.12660.

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7

Gross, Liza. "Autoimmunity: A Barrier to Gene Flow in Plants?" PLoS Biology 5, no. 9 (2007): e262. http://dx.doi.org/10.1371/journal.pbio.0050262.

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8

Lessios, H. A. "A sea water barrier to coral gene flow." Molecular Ecology 21, no. 22 (2012): 5390–92. http://dx.doi.org/10.1111/mec.12037.

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9

Gayden, Tenzin, Annabel Perez, Patrice J. Persad, et al. "The Himalayas: Barrier and conduit for gene flow." American Journal of Physical Anthropology 151, no. 2 (2013): 169–82. http://dx.doi.org/10.1002/ajpa.22240.

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10

Christmas, Matthew J., Julia C. Jones, Anna Olsson, et al. "Genetic Barriers to Historical Gene Flow between Cryptic Species of Alpine Bumblebees Revealed by Comparative Population Genomics." Molecular Biology and Evolution 38, no. 8 (2021): 3126–43. http://dx.doi.org/10.1093/molbev/msab086.

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Abstract Evidence is accumulating that gene flow commonly occurs between recently diverged species, despite the existence of barriers to gene flow in their genomes. However, we still know little about what regions of the genome become barriers to gene flow and how such barriers form. Here, we compare genetic differentiation across the genomes of bumblebee species living in sympatry and allopatry to reveal the potential impact of gene flow during species divergence and uncover genetic barrier loci. We first compared the genomes of the alpine bumblebee Bombus sylvicola and a previously unidentif

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