Toward predicting gene flow in plant populations
نویسندگان
چکیده
منابع مشابه
Circuit theory predicts gene flow in plant and animal populations.
Maintaining connectivity for broad-scale ecological processes like dispersal and gene flow is essential for conserving endangered species in fragmented landscapes. However, determining which habitats should be set aside to promote connectivity has been difficult because existing models cannot incorporate effects of multiple pathways linking populations. Here, we test an ecological connectivity ...
متن کاملGene flow from foreign provenances into local plant populations: Fitness consequences and implications for biodiversity restoration.
Long-distance transplantation of seed material as done in restoration programs has raised concerns about the risks associated with the introduction of maladapted genotypes that may hybridize with neighboring native conspecifics and decrease local population fitness (outbreeding depression). We studied the consequences of gene flow from foreign provenances into local populations in the common gr...
متن کاملGene flow among small populations of a self-incompatible plant: an interaction between demography and genetics.
We assessed the effects of population size and genetic relatedness on rates of pollen gene flow into experimental populations of the insect-pollinated, self-incompatible plant Raphanus sativus. We created synthetic populations of sizes 2, 5, 10, and 20 with three genetic structures (full siblings, half siblings, and unrelated plants). Following pollination in a natural setting, we conducted a s...
متن کاملDams and canyons disrupt gene flow among populations of a threatened riparian plant
1. Natural and man-made barriers have a significant impact on the population structure and genetic diversity of aquatic species. Little is known whether terrestrial, riparian species are affected in the same way by barriers. 2. Here, we analysed the genetic structure of a threatened riparian shrub based on 20 microsatellite markers and 1176 individuals collected from 34 localities in four Alpin...
متن کاملFrequency-dependent Seed Production and Hybridization Rates: Implications for Gene Flow between Locally Adapted Plant Populations.
Gene flow between genetically distinct plant populations can have significant evolutionary consequences. It can increase genetic diversity, create novel gene combinations, and transfer adaptations from one population to another. This study addresses the roles of frequency-dependent selection and mating system in gene exchange between two subspecies of Gilia capitata (Polemoniaceae). Long-distan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Biotechnology
سال: 2005
ISSN: 1347-6114,1342-4580
DOI: 10.5511/plantbiotechnology.22.489