Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)

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dc.creatorKantar, Michael B.
dc.creatorSosa, Chrystian C.
dc.creatorKhoury, Colin K.
dc.creatorCastañeda Álvarez, Nora P.
dc.creatorAchicanoy Estrella, Harold Armando
dc.creatorBernau, V.
dc.creatorKane, Nolan
dc.creatorMarek, Laura F.
dc.creatorSeiler, Gerald
dc.creatorRieseberg, Loren H.
dc.date2015
dc.date2015-09-30T16:49:57Z
dc.date2015-09-30T16:49:57Z
dc.date.accessioned2026-06-27T14:29:37Z
dc.descriptionCrop 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 comprehensive ex situ conservation were identified. The predicted distributions for 36 Helianthus taxa identified substantial range overlap, range asymmetry and niche conservatism. Specific taxa (e.g., Helianthus deblis Nutt., Helianthus anomalus Blake, and Helianthus divaricatus L.) were identified as targets for traits of interest, particularly for abiotic stress tolerance, and adaptation to extreme soil properties. The combination of techniques demonstrates the potential for publicly available ecogeographic and phylogenetic data to facilitate the identification of possible sources of abiotic stress traits for plant breeding programs. Much of the primary genepool (wild H. annuus) occurs in extreme environments indicating that introgression of targeted traits may be relatively straightforward. Sister taxa in Helianthus have greater range overlap than more distantly related taxa within the genus. This adds to a growing body of literature suggesting that in plants (unlike some animal groups), geographic isolation may not be necessary for speciation.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/68377
dc.identifier.urihttp://hdl.handle.net/123456789/79817
dc.languageen
dc.publisherFrontiers Media
dc.rightsOpen Access
dc.sourceKantar, Michael B.; Sosa, Chrystian C.; Khoury, Colin K.; Castañeda-Álvarez, Nora P.; Achicanoy, Harold A.; Bernau, Vivian; Kane, Nolan; Marek, Laura; Seiler, Gerald; Rieseberg, Loren. 2015. Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.). Frontiers in Plant Science 36 p.
dc.subjectclimate change
dc.subjectwild plants
dc.subjectplant genetic resources
dc.subjectresource conservation
dc.subjecthelianthus annuus
dc.subjectplant breeding
dc.subjectgeographical distribution
dc.subjectcambio climático
dc.subjectplantas silvestres
dc.subjectrecursos genéticos vegetales
dc.subjectconservación de los recursos
dc.subjectmejoramiento genético de plantas
dc.subjectdistribución geográfica
dc.titleEcogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
dc.typeJournal Article

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