Hybridization Slows Rate of Evolution in Crop-Wild Compared to Wild Populations of Weedy Raphanus Across a Moisture Gradient
نویسندگان
چکیده
منابع مشابه
The Effect of Altered Soil Moisture on Hybridization Rate in a Crop-Wild System (Raphanus spp.)
Since plant mating choices are flexible and responsive to the environment, rates of spontaneous hybridization may vary across ecological clines. Developing a robust and predictive framework for rates of plant gene flow requires assessing the role of environmental sensitivity on plant reproductive traits, relative abundance, and pollen vectors. Therefore, across a soil moisture gradient, we quan...
متن کاملLong-term persistence of crop alleles in weedy populations of wild radish (Raphanus raphanistrum).
*Hybridization allows transgenes and other crop alleles to spread to wild/weedy populations of related taxa. Researchers have debated whether such alleles will persist because low hybrid fitness and linkage to domestication traits could severely impede introgression. *To examine variation in the fates of three unlinked crop alleles, we monitored four experimental, self-seeding, hybrid populatio...
متن کاملIntrogression of Crop Alleles into Wild or Weedy Populations
The evolutionary significance of introgression has been discussed for decades. Questions about potential impacts of transgene flow into wild and weedy populations brought renewed attention to the introgression of crop alleles into those populations. In the past two decades, the field has advanced with considerable descriptive, experimental, and theoretical activity on the dynamics of crop gene ...
متن کاملPollinator preferences and the persistence of crop genes in wild radish populations (Raphanus raphanistrum, Brassicaceae).
Crop-weed hybridization can potentially influence the evolutionary ecology of wild populations. Many crops are known to hybridize with wild relatives, but few studies have looked at the long-term persistence of crop genes in the wild. This study investigated one factor in the hybridization process in radish: differential pollinator visitation to wild radish (Raphanus raphanistrum) vs. crop-wild...
متن کاملPopulations of weedy crop–wild hybrid beets show contrasting variation in mating system and population genetic structure
Reproductive traits are key parameters for the evolution of invasiveness in weedy crop-wild hybrids. In Beta vulgaris, cultivated beets hybridize with their wild relatives in the seed production areas, giving rise to crop-wild hybrid weed beets. We investigated the genetic structure, the variation in first-year flowering and the variation in mating system among weed beet populations occurring w...
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ژورنال
عنوان ژورنال: Frontiers in Agronomy
سال: 2020
ISSN: 2673-3218
DOI: 10.3389/fagro.2020.600346