Compartir
Título
Perspectives on Low Temperature Tolerance and Vernalization Sensitivity in Barley: Prospects for Facultative Growth Habit
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Frontiers in Plant Science
Datos de la obra
Muñoz-Amatriaín, M., Hernandez, J., Herb, D., Baenziger, P. S., Bochard, A. M., Capettini, F., Casas, A., Cuesta-Marcos, A., Einfeldt, C., Fisk, S., Genty, A., Helgerson, L., Herz, M., Hu, G., Igartua, E., Karsai, I., Nakamura, T., Sato, K., Smith, K., Stockinger, E., Thomas, W. and Hayes P. (2020). Perspectives on low temperature tolerance and vernalization sensitivity in barley: prospects for facultative growth habit. Frontiers in Plant Science,11, Article e585927.https://doi.org/10.3389/FPLS.2020.585927
Editor
Frontiers Media
Fecha
2020-11-09
Résumé
[EN] One option to achieving greater resiliency for barley production in the face of climate change is to explore the potential of winter and facultative growth habits: for both types, low temperature tolerance (LTT) and vernalization sensitivity are key traits. Sensitivity to short-day photoperiod is a desirable attribute for facultative types. In order to broaden our understanding of the genetics of these phenotypes, we mapped quantitative trait loci (QTLs) and identified candidate genes using a genome-wide association studies (GWAS) panel composed of 882 barley accessions that was genotyped with the Illumina 9K single-nucleotide polymorphism (SNP) chip. Fifteen loci including 5 known and 10 novel QTL/genes were identified for LTT—assessed as winter survival in 10 field tests and mapped using a GWAS meta-analysis. FR-H1, FR-H2, and FR-H3 were major drivers of LTT, and candidate genes were identified for FR-H3. The principal determinants of vernalization sensitivity were VRN-H1, VRN-H2, and PPD-H1. VRN-H2 deletions conferred insensitive or intermediate sensitivity to vernalization. A subset of accessions with maximum LTT were identified as a resource for allele mining and further characterization. Facultative types comprised a small portion of the GWAS panel but may be useful for developing germplasm with this growth habit
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/USDA//NIFA-TCAP-2011-68002-30029
URI
DOI
Versión del editor
Aparece en las colecciones
- Untitled [5086]
Fichier(s) constituant ce document
Tamaño:
1.885
xmlui.dri2xhtml.METS-1.0.size-megabytes
Formato:
Adobe PDF
Descripción:
Artículo