Wild helianthus species and wild-sunflower hybridization in Argentina
نویسندگان
چکیده
منابع مشابه
Gene transfer from wild Helianthus to sunflower: topicalities and limits
1 The University of Georgia, Institute of Plant Breeding, Genetics and Genomics Center for Applied Genetic Technologies, 111 RiverbendRoad 30606 Athens, GA 2 INRA UMR DIAPC, chemin du Mezouls, 34130 Mauguio, France 3 INRA UMR DIAPC, bâtiment 33, 34060 Montpellier cedex 01, France Abstract: Sunflower (2n=17) belongs to the Helianthus genus (Asteraceae). Wild Helianthus species display morphologi...
متن کاملThe potential for gene flow between cultivated and wild sunflower (Helianthus annuus) in the United States.
The transfer of genes from crop plants to their wild relatives via hybridization has emerged as one of the primary risks associated with the commercialization of genetically engineered crops. Although previous studies have revealed relatively high levels of hybridization when crop plants come into contact with their wild relatives, the frequency of such contact across the range of cultivation o...
متن کاملEcogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
Crop wild relatives (CWR) are a rich source of genetic diversity for crop improvement. Combining ecogeographic and phylogenetic techniques can inform both conservation and breeding. Geographic occurrence, bioclimatic, and biophysical data were used to predict species distributions, range overlap and niche occupancy in 36 taxa closely related to sunflower (Helianthus annuus L.). Taxa lacking com...
متن کاملGenetics of species differences in the wild annual sunflowers, Helianthus annuus and H. petiolaris.
Much of our knowledge of speciation genetics stems from quantitative trait locus (QTL) studies. However, interpretations of the size and distribution of QTL underlying species differences are complicated by differences in the way QTL magnitudes are estimated. Also, many studies fail to exploit information about QTL directions or to compare inter- and intraspecific QTL variation. Here, we compre...
متن کاملSelection on Crop-Derived Traits and QTL in Sunflower (Helianthus annuus) Crop-Wild Hybrids under Water Stress
Locally relevant conditions, such as water stress in irrigated agricultural regions, should be considered when assessing the risk of crop allele introgression into wild populations following hybridization. Although research in cultivars has suggested that domestication traits may reduce fecundity under water stress as compared to wild-like phenotypes, this has not been investigated in crop-wild...
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: Helia
سال: 2004
ISSN: 1018-1806
DOI: 10.2298/hel0440133p