Person: Piñera Chavez, F.J
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Piñera Chavez
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F.J
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Piñera Chavez, F.J
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0000-0001-7868-2396 7 results
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- Author Correction: Enhanced radiation use efficiency and grain filling rate as the main drivers of grain yield genetic gains in the CIMMYT elite spring wheat yield trial(Nature Publishing Group, 2024) Gerard, G.; Mondal, S.; Piñera Chavez, F.J.; Rivera Amado, A.C.; Molero, G.; Crossa, J.; Huerta-Espino, J.; Velu, G.; Braun, H.J.; Singh, R.P.; Crespo-Herrera, L.A.
Publication - Enhanced radiation use efficiency and grain filling rate as the main drivers of grain yield genetic gains in the CIMMYT elite spring wheat yield trial(Nature Publishing Group, 2024) Gerard, G.S.; Mondal, S.; Piñera Chavez, F.J; Rivera-Amado, A.C.; Molero, G.; Crossa, J.; Huerta-Espino, J.; Velu, G.; Braun, H.J.; Singh, R.P.; Crespo-Herrera, L.A.
Publication - Exotic alleles contribute to heat tolerance in wheat under field conditions(Springer Nature, 2023) Molero, G.; Coombes, B.; Joynson, R.; Pinto Espinosa, F.; Piñera Chavez, F.J; Rivera-Amado, C.; Hall, A.J.W.; Reynolds, M.P.
Publication - Uncovering candidate genes involved in photosynthetic capacity using unexplored genetic variation in Spring Wheat(Wiley, 2021) Joynson, R.; Molero, G.; Coombes, B.; Gardiner, L.J.; Rivera-Amado, C.; Piñera Chavez, F.J; Evans, J.R.; Furbank, R.; Reynolds, M.P.; Hall, A.J.W.
Publication - Breeder friendly phenotyping(Elsevier, 2020) Reynolds, M.P.; Chapman, S.; Crespo Herrera, L.A.; Molero, G.; Mondal, S.; Pequeno, D.N.L.; Pinto Espinosa, F.; Piñera Chavez, F.J; Poland, J.; Rivera-Amado, C.; Saint Pierre, C.; Sukumaran, S.
Publication - Elucidating the genetic basis of biomass accumulation and radiation use efficiency in spring wheat and its role in yield potential(Wiley Open Access, 2019) Molero, G.; Joynson, R.; Piñera Chavez, F.J; Gardiner, L.J.; Rivera-Amado, C.; Hall, A.J.W.; Reynolds, M.P.One of the major challenges for plant scientists is increasing wheat (Triticum aestivum) yield potential (YP). A significant bottleneck for increasing YP is achieving increased biomass through optimization of radiation use efficiency (RUE) along the crop cycle. Exotic material such as landraces and synthetic wheat has been incorporated into breeding programmes in an attempt to alleviate this; however, their contribution to YP is still unclear. To understand the genetic basis of biomass accumulation and RUE, we applied genome-wide association study (GWAS) to a panel of 150 elite spring wheat genotypes including many landrace and synthetically derived lines. The panel was evaluated for 31 traits over 2 years under optimal growing conditions and genotyped using the 35K wheat breeders array. Marker-trait association identified 94 SNPs significantly associated with yield, agronomic and phenology-related traits along with RUE and final biomass (BM_PM) at various growth stages that explained 7%–17% of phenotypic variation. Common SNP markers were identified for grain yield, BM_PM and RUE on chromosomes 5A and 7A. Additionally, landrace and synthetic derivative lines showed higher thousand grain weight (TGW), BM_PM and RUE but lower grain number (GM2) and harvest index (HI). Our work demonstrates the use of exotic material as a valuable resource to increase YP. It also provides markers for use in marker-assisted breeding to systematically increase BM_PM, RUE and TGW and avoid the TGW/GM2 and BM_PM/HI trade-off. Thus, achieving greater genetic gains in elite germplasm while also highlighting genomic regions and candidate genes for further study.
Publication - Avoiding lodging in irrigated spring wheat. II. Genetic variation of stem and root structural properties(Elsevier, 2016) Piñera Chavez, F.J; Berry, P.M.; Foulkes, J.; Molero, G.; Reynolds, M.P.Lodging-related traits were evaluated on the CIMMYT Core spring wheat Germplasm Panel (CIMCOG) inthe Yaqui Valley of North-West Mexico during three seasons (2010–2013). Genetic variation was signif-icant for all the lodging-related traits in the cross-year analysis, however, significant G × E interactiondue to rank changes or changes in the absolute differences between cultivars were identified. The incon-sistences on cultivar performances across seasons particularly reduced the heritability of key charactersrelated to root lodging resistance (anchorage strength). Target characters related to stem lodging resis-tance (stem strength) showed good heritability values equal or above 0.70. Positive correlations betweenstem strength and stem diameter and between root plate spread and root strength were found. Select-ing for greater stem diameter and wall width, greater root plate spread and shorter plant height couldenable breeders to increase lodging resistance by increasing stem strength, root strength and decreasingplant leverage, respectively. Achieving a lodging-proof crop will depend on finding a wider root platespread and implementing new management strategies. Genetic linkages between lodging traits will notconstrain the combination of the key lodging-trait dimensions to achieve a lodging-proof ideotype. How-ever, strong association between stem strength and stem wall width will increase the total biomass costneeded for lodging resistance.
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