Quantitative trait loci affecting reproductive phenology in peach
Background: The reproductive phenology of perennial plants in temperate climates is largely conditioned by the duration of bud dormancy, and fruit developmental processes. Bud dormancy release and bud break depends on the perception of cumulative chilling and heat during the bud development. The obj...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1050 https://bmcplantbiol.biomedcentral.com/articles/10.1186/1471-2229-14-52 https://doi.org/10.1186/1471-2229-14-52 |
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| author | Romeu Santacreu, José Francisco Monforte Gilabert, Antonio J. Sanchez, Gerardo Granell Richart, Antonio García Brunton, Jesús Badenes, María Luisa Ríos García, Gabino |
| author_browse | Badenes, María Luisa García Brunton, Jesús Granell Richart, Antonio Monforte Gilabert, Antonio J. Romeu Santacreu, José Francisco Ríos García, Gabino Sanchez, Gerardo |
| author_facet | Romeu Santacreu, José Francisco Monforte Gilabert, Antonio J. Sanchez, Gerardo Granell Richart, Antonio García Brunton, Jesús Badenes, María Luisa Ríos García, Gabino |
| author_sort | Romeu Santacreu, José Francisco |
| collection | INTA Digital |
| description | Background: The reproductive phenology of perennial plants in temperate climates is largely conditioned by the duration of bud dormancy, and fruit developmental processes. Bud dormancy release and bud break depends on the perception of cumulative chilling and heat during the bud development. The objective of this work was to identify new quantitative trait loci (QTLs) associated to temperature requirements for bud dormancy release and flowering and to fruit harvest date, in a segregating population of peach.
Results
We have identified QTLs for nine traits related to bud dormancy, flowering and fruit harvest in an intraspecific hybrid population of peach in two locations differing in chilling time accumulation. QTLs were located in a genetic linkage map of peach based on single nucleotide polymorphism (SNP) markers for eight linkage groups (LGs) of the peach genome sequence. QTLs for chilling requirements for dormancy release and blooming clustered in seven different genomic regions that partially coincided with loci identified in previous works. The most significant QTL for chilling requirements mapped to LG1, close to the evergrowing locus. QTLs for heat requirement related traits were distributed in nine genomic regions, four of them co-localizing with QTLs for chilling requirement trait. Two major loci in LG4 and LG6 determined fruit harvest time.
Conclusions
We identified QTLs associated to nine traits related to the reproductive phenology in peach. A search of candidate genes for these QTLs rendered different genes related to flowering regulation, chromatin modification and hormone signalling. A better understanding of the genetic factors affecting crop phenology might help scientists and breeders to predict changes in genotype performance in a context of global climate change. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1050 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA10502018-08-07T18:29:17Z Quantitative trait loci affecting reproductive phenology in peach Romeu Santacreu, José Francisco Monforte Gilabert, Antonio J. Sanchez, Gerardo Granell Richart, Antonio García Brunton, Jesús Badenes, María Luisa Ríos García, Gabino Prunus Persica Durazno Floración Dormición Maduración Fitomejoramiento Loci de Rasgos Cuantitativos Enfriamiento Peaches Flowering Dormancy Maturation Plant Breeding Quantitative Trait Loci Cooling QTL (Quantitative Trait Loci) Background: The reproductive phenology of perennial plants in temperate climates is largely conditioned by the duration of bud dormancy, and fruit developmental processes. Bud dormancy release and bud break depends on the perception of cumulative chilling and heat during the bud development. The objective of this work was to identify new quantitative trait loci (QTLs) associated to temperature requirements for bud dormancy release and flowering and to fruit harvest date, in a segregating population of peach. Results We have identified QTLs for nine traits related to bud dormancy, flowering and fruit harvest in an intraspecific hybrid population of peach in two locations differing in chilling time accumulation. QTLs were located in a genetic linkage map of peach based on single nucleotide polymorphism (SNP) markers for eight linkage groups (LGs) of the peach genome sequence. QTLs for chilling requirements for dormancy release and blooming clustered in seven different genomic regions that partially coincided with loci identified in previous works. The most significant QTL for chilling requirements mapped to LG1, close to the evergrowing locus. QTLs for heat requirement related traits were distributed in nine genomic regions, four of them co-localizing with QTLs for chilling requirement trait. Two major loci in LG4 and LG6 determined fruit harvest time. Conclusions We identified QTLs associated to nine traits related to the reproductive phenology in peach. A search of candidate genes for these QTLs rendered different genes related to flowering regulation, chromatin modification and hormone signalling. A better understanding of the genetic factors affecting crop phenology might help scientists and breeders to predict changes in genotype performance in a context of global climate change. Fil: Romeu Santacreu, José Francisco. Instituto Murciano de Investigación y Desarrollo Agrario; España Fil: Monforte Gilabert, Antonio J. Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas. Instituto de Biología Molecular y Celular de Plantas; España Fil: Sanchez, Gerardo. Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas. Instituto de Biología Molecular y Celular de Plantas; España. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentina Fil: Granell Richart, Antonio. Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas. Instituto de Biología Molecular y Celular de Plantas; España Fil: García Brunton, Jesús. Instituto Murciano de Investigación y Desarrollo Agrario; España Fil: Badenes, María Luisa. Instituto Valenciano de Investigaciones Agrarias; España Fil: Ríos García, Gabino. Instituto Valenciano de Investigaciones Agrarias; España 2017-08-28T13:18:16Z 2017-08-28T13:18:16Z 2014-02-22 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1050 https://bmcplantbiol.biomedcentral.com/articles/10.1186/1471-2229-14-52 1471-2229 https://doi.org/10.1186/1471-2229-14-52 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf BMC Genomics 14. (May 2014) |
| spellingShingle | Prunus Persica Durazno Floración Dormición Maduración Fitomejoramiento Loci de Rasgos Cuantitativos Enfriamiento Peaches Flowering Dormancy Maturation Plant Breeding Quantitative Trait Loci Cooling QTL (Quantitative Trait Loci) Romeu Santacreu, José Francisco Monforte Gilabert, Antonio J. Sanchez, Gerardo Granell Richart, Antonio García Brunton, Jesús Badenes, María Luisa Ríos García, Gabino Quantitative trait loci affecting reproductive phenology in peach |
| title | Quantitative trait loci affecting reproductive phenology in peach |
| title_full | Quantitative trait loci affecting reproductive phenology in peach |
| title_fullStr | Quantitative trait loci affecting reproductive phenology in peach |
| title_full_unstemmed | Quantitative trait loci affecting reproductive phenology in peach |
| title_short | Quantitative trait loci affecting reproductive phenology in peach |
| title_sort | quantitative trait loci affecting reproductive phenology in peach |
| topic | Prunus Persica Durazno Floración Dormición Maduración Fitomejoramiento Loci de Rasgos Cuantitativos Enfriamiento Peaches Flowering Dormancy Maturation Plant Breeding Quantitative Trait Loci Cooling QTL (Quantitative Trait Loci) |
| url | http://hdl.handle.net/20.500.12123/1050 https://bmcplantbiol.biomedcentral.com/articles/10.1186/1471-2229-14-52 https://doi.org/10.1186/1471-2229-14-52 |
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