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Título: | Major flowering time genes of barley: allelic diversity, effects, and comparison with wheat |
Autor: | Fernández-Calleja, Miriam CSIC; Casas Cendoya, Ana María CSIC ORCID ; Igartua Arregui, Ernesto CSIC ORCID | Fecha de publicación: | may-2021 | Editor: | Springer Nature | Citación: | Fernández-Calleja M, Casas AM, Igartua E. Major flowering time genes of barley: allelic diversity, effects, and comparison with wheat. Theoretical Applied Genetics 134: 1867–1897 (2021) | Resumen: | The optimization of phenology is a major goal of plant breeding addressing the production of high-yielding varieties adapted to changing climatic conditions. Flowering time in cereals is regulated by genetic networks that respond predominately to day length and temperature. Allelic diversity at these genes is at the basis of barley wide adaptation. Detailed knowledge of their effects, and genetic and environmental interactions will facilitate plant breeders manipulating flowering time in cereal germplasm enhancement, by exploiting appropriate gene combinations. This review describes a catalogue of alleles found in QTL studies by barley geneticists, corresponding to the genetic diversity at major flowering time genes, the main drivers of barley phenological adaptation: VRN-H1 (HvBM5A), VRN-H2 (HvZCCTa-c), VRN-H3 (HvFT1), PPD-H1 (HvPRR37), PPD-H2 (HvFT3), and eam6/eps2 (HvCEN). For each gene, allelic series, size and direction of QTL effects, interactions between genes and with the environment are presented. Pleiotropic effects on agronomically important traits such as grain yield are also discussed. The review includes brief comments on additional genes with large effects on phenology that became relevant in modern barley breeding. The parallelisms between flowering time allelic variation between the two most cultivated Triticeae species (barley and wheat) are also outlined. This work is mostly based on previously published data, although we added some new data and hypothesis supported by a number of studies. This review shows the wide variety of allelic effects that provide enormous plasticity in barley flowering behavior, which opens new avenues to breeders for fine-tuning phenology of the barley crop. | Descripción: | 31 Pags.- 4 Figs.- 6 Tabls. © The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. | Versión del editor: | https://doi.org/10.1007/s00122-021-03824-z | URI: | http://hdl.handle.net/10261/250710 | DOI: | 10.1007/s00122-021-03824-z | ISSN: | 0040-5752 | E-ISSN: | 1432-2242 |
Aparece en las colecciones: | (EEAD) Artículos |
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