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Ecogeography 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...

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Autores principales: Kantar, Michael B., Sosa, Chrystian C., Khoury, Colin K., Castañeda-Álvarez, Nora P., Achicanoy, Harold A., Bernau, Vivian, Kane, Nolan C., Marek, Laura, Seiler, Gerald, Rieseberg, Loren H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4597133/
https://www.ncbi.nlm.nih.gov/pubmed/26500675
http://dx.doi.org/10.3389/fpls.2015.00841
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author Kantar, Michael B.
Sosa, Chrystian C.
Khoury, Colin K.
Castañeda-Álvarez, Nora P.
Achicanoy, Harold A.
Bernau, Vivian
Kane, Nolan C.
Marek, Laura
Seiler, Gerald
Rieseberg, Loren H.
author_facet Kantar, Michael B.
Sosa, Chrystian C.
Khoury, Colin K.
Castañeda-Álvarez, Nora P.
Achicanoy, Harold A.
Bernau, Vivian
Kane, Nolan C.
Marek, Laura
Seiler, Gerald
Rieseberg, Loren H.
author_sort Kantar, Michael B.
collection PubMed
description 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 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.
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spelling pubmed-45971332015-10-23 Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.) Kantar, Michael B. Sosa, Chrystian C. Khoury, Colin K. Castañeda-Álvarez, Nora P. Achicanoy, Harold A. Bernau, Vivian Kane, Nolan C. Marek, Laura Seiler, Gerald Rieseberg, Loren H. Front Plant Sci Plant Science 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 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. Frontiers Media S.A. 2015-10-08 /pmc/articles/PMC4597133/ /pubmed/26500675 http://dx.doi.org/10.3389/fpls.2015.00841 Text en Copyright © 2015 Kantar, Sosa, Khoury, Castañeda-Álvarez, Achicanoy, Bernau, Kane, Marek, Seiler and Rieseberg. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Kantar, Michael B.
Sosa, Chrystian C.
Khoury, Colin K.
Castañeda-Álvarez, Nora P.
Achicanoy, Harold A.
Bernau, Vivian
Kane, Nolan C.
Marek, Laura
Seiler, Gerald
Rieseberg, Loren H.
Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title_full Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title_fullStr Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title_full_unstemmed Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title_short Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)
title_sort ecogeography and utility to plant breeding of the crop wild relatives of sunflower (helianthus annuus l.)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4597133/
https://www.ncbi.nlm.nih.gov/pubmed/26500675
http://dx.doi.org/10.3389/fpls.2015.00841
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