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Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)

Although high pollinator visitation is crucial to ensure the yields of pollinator-dependent crops, the quantitative trait loci (QTL) controlling nectar volume in sunflower (Helianthus annuus L.), a pollinator preference trait, have yet to be identified. To address this, a recombinant inbred line map...

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Autores principales: Barstow, Ashley C., Prasifka, Jarrad R., Attia, Ziv, Kane, Nolan C., Hulke, Brent S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9806390/
https://www.ncbi.nlm.nih.gov/pubmed/36600919
http://dx.doi.org/10.3389/fpls.2022.1056278
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author Barstow, Ashley C.
Prasifka, Jarrad R.
Attia, Ziv
Kane, Nolan C.
Hulke, Brent S.
author_facet Barstow, Ashley C.
Prasifka, Jarrad R.
Attia, Ziv
Kane, Nolan C.
Hulke, Brent S.
author_sort Barstow, Ashley C.
collection PubMed
description Although high pollinator visitation is crucial to ensure the yields of pollinator-dependent crops, the quantitative trait loci (QTL) controlling nectar volume in sunflower (Helianthus annuus L.), a pollinator preference trait, have yet to be identified. To address this, a recombinant inbred line mapping population, derived from lines with contrasting nectar volume, was used to identify loci responsible for the phenotype. As a result, linkage mapping and QTL analysis discovered major loci on chromosomes 2 and 16 that are associated with variation in nectar volume in sunflower. Increased nectar volume is also associated with increased sugars and total energy available per floret. The regions on chromosomes 2 and 16 associated with the nectar phenotype exhibit indications of chromosome structural variation, such that the phenotype is associated with rearrangements affecting regions containing hundreds of genes. Candidate genes underlying QTL on chromosomes 9 and 16 are homologous to genes with nectary function in Arabidopsis. These results have implications for sunflower breeding, to enhance pollination efficiency in sunflower, as well as current and future studies on sunflower evolution.
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spelling pubmed-98063902023-01-03 Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.) Barstow, Ashley C. Prasifka, Jarrad R. Attia, Ziv Kane, Nolan C. Hulke, Brent S. Front Plant Sci Plant Science Although high pollinator visitation is crucial to ensure the yields of pollinator-dependent crops, the quantitative trait loci (QTL) controlling nectar volume in sunflower (Helianthus annuus L.), a pollinator preference trait, have yet to be identified. To address this, a recombinant inbred line mapping population, derived from lines with contrasting nectar volume, was used to identify loci responsible for the phenotype. As a result, linkage mapping and QTL analysis discovered major loci on chromosomes 2 and 16 that are associated with variation in nectar volume in sunflower. Increased nectar volume is also associated with increased sugars and total energy available per floret. The regions on chromosomes 2 and 16 associated with the nectar phenotype exhibit indications of chromosome structural variation, such that the phenotype is associated with rearrangements affecting regions containing hundreds of genes. Candidate genes underlying QTL on chromosomes 9 and 16 are homologous to genes with nectary function in Arabidopsis. These results have implications for sunflower breeding, to enhance pollination efficiency in sunflower, as well as current and future studies on sunflower evolution. Frontiers Media S.A. 2022-12-19 /pmc/articles/PMC9806390/ /pubmed/36600919 http://dx.doi.org/10.3389/fpls.2022.1056278 Text en Copyright © 2022 Barstow, Prasifka, Attia, Kane and Hulke https://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) and the copyright owner(s) 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
Barstow, Ashley C.
Prasifka, Jarrad R.
Attia, Ziv
Kane, Nolan C.
Hulke, Brent S.
Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title_full Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title_fullStr Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title_full_unstemmed Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title_short Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
title_sort genetic mapping of a pollinator preference trait: nectar volume in sunflower (helianthus annuus l.)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9806390/
https://www.ncbi.nlm.nih.gov/pubmed/36600919
http://dx.doi.org/10.3389/fpls.2022.1056278
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