Plant introductions, hybridization and gene flow
نویسندگان
چکیده
منابع مشابه
Frequency-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...
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Forage plants introduced to Hawai`i have come from both temperate and tropical areas of the world. Although introduced species have changed the face of the landscape, they have often failed to provide long-term benefits to the livestock industry. Proper management of rangelands can result in increased livestock productivity and reduce the need for further introductions of forage plants. Almost ...
متن کاملMultiple introductions and gene flow in subtropical South American populations of the fireweed, Senecio madagascariensis(Asteraceae).
Non-indigenous plants exhibit different attributes that make them aggressive competitors with indigenous plants and serious threats to biodiversity.Senecio madagascariensis (fireweed, Asteraceae), a native from southern Africa, is a strong competitor in agricultural activities and has toxic alkaloids that may result in high cattle mortality. In Brazil, this weed was collected for the first time...
متن کاملPutative Alleles for Increased Yield from Soybean Plant Introductions
cated that soybean PIs may have alleles for enhanced seed yield. Improving seed yield of soybean [Glycine max (L.) Merr.] is an Molecular marker analysis can aid in the discovery important breeding goal. The objective of this study was to evaluate and mapping of QTL associated with beneficial and two soybean PIs as sources of alleles for the enhancement of seed novel alleles from exotic parents...
متن کاملCircuit 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 ...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences
سال: 2003
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2003.1289