Rampant Gene Exchange Across a Strong Reproductive Barrier Between the Annual Sunflowers, Helianthus annuus and H. petiolaris
Y Yatabe, NC Kane, C Scotti-Saintagne… - Genetics, 2007 - academic.oup.com
Plant species may remain morphologically distinct despite gene exchange with congeners,
yet little is known about the genomewide pattern of introgression among species. Here we …
yet little is known about the genomewide pattern of introgression among species. Here we …
Genomic patterns of adaptive divergence between chromosomally differentiated sunflower species
Understanding the genetic mechanisms of speciation and basis of species differences is
among the most important challenges in evolutionary biology. Two questions of particular …
among the most important challenges in evolutionary biology. Two questions of particular …
Genome scan of hybridizing sunflowers from Texas (Helianthus annuus and H. debilis) reveals asymmetric patterns of introgression and small islands of genomic …
M Scascitelli, KD Whitney, RA Randell… - Molecular …, 2010 - Wiley Online Library
Although the sexual transfer of genetic material between species (ie introgression) has been
documented in many groups of plants and animals, genome‐wide patterns of introgression …
documented in many groups of plants and animals, genome‐wide patterns of introgression …
MOLECULAR DEMOGRAPHIC HISTORY OF THE ANNUAL SUNFLOWERS HELIANTHUS ANNUUS AND H. PETIOLARIS—LARGE EFFECTIVE POPULATION …
JL Strasburg, LH Rieseberg - Evolution, 2008 - academic.oup.com
Hybridization between distinct species may lead to introgression of genes across species
boundaries, and this pattern can potentially persist for extended periods as long as selection …
boundaries, and this pattern can potentially persist for extended periods as long as selection …
Comparative genomic and population genetic analyses indicate highly porous genomes and high levels of gene flow between divergent Helianthus species
While speciation can be found in the presence of gene flow, it is not clear what impact this
gene flow has on genome-and range-wide patterns of differentiation. Here we examine …
gene flow has on genome-and range-wide patterns of differentiation. Here we examine …
Genetic architecture of species differences in annual sunflowers: implications for adaptive trait introgression
SC Kim, LH Rieseberg - Genetics, 1999 - academic.oup.com
Genetic architecture may profoundly influence the ability of adaptive traits to spread between
species via introgressive hybridization. Here, we examine the genomic location of …
species via introgressive hybridization. Here, we examine the genomic location of …
Extensive chromosomal repatterning and the evolution of sterility barriers in hybrid sunflower species
Z Lai, T Nakazato, M Salmaso, JM Burke, S Tang… - Genetics, 2005 - academic.oup.com
New species may arise via hybridization and without a change in ploidy. This process,
termed homoploid hybrid speciation, is theoretically difficult because it requires the …
termed homoploid hybrid speciation, is theoretically difficult because it requires the …
[HTML][HTML] Genomic islands of divergence are not affected by geography of speciation in sunflowers
Genomic studies of speciation often report the presence of highly differentiated genomic
regions interspersed within a milieu of weakly diverged loci. The formation of these …
regions interspersed within a milieu of weakly diverged loci. The formation of these …
Chromosomal Evolution and Patterns of Introgression in Helianthus
Abstract Knowledge of the nature and extent of karyotypic differences between species
provides insight into the evolutionary history of the genomes in question and, in the case of …
provides insight into the evolutionary history of the genomes in question and, in the case of …
Hybrid zones and the genetic architecture of a barrier to gene flow between two sunflower species
LH Rieseberg, J Whitton, K Gardner - Genetics, 1999 - academic.oup.com
Genetic analyses of reproductive barriers represent one of the few methods by which
theories of speciation can be tested. However, genetic study is often restricted to model …
theories of speciation can be tested. However, genetic study is often restricted to model …
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