Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses

Flag-leaf angle (FLAngle), flag-leaf area (FLarea) and flag-leaf area duration (FLADuration) are important traits in determining yield in wheat (<i>Triticum aestivum</i> L). Genetic studies on these traits are very few. The objective of this study was to determine the gene action control...

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Guardado en:
Detalles Bibliográficos
Autor principal: Simón, María Rosa
Formato: Articulo
Lenguaje:Inglés
Publicado: 1999
Materias:
Biología
Triticum aestivum
Wheat
Morphophysiological traits
Inheritance
Flag-leaf characters
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133683
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-133683
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Triticum aestivum
Wheat
Morphophysiological traits
Inheritance
Flag-leaf characters
spellingShingle Biología
Triticum aestivum
Wheat
Morphophysiological traits
Inheritance
Flag-leaf characters
Simón, María Rosa
Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
topic_facet Biología
Triticum aestivum
Wheat
Morphophysiological traits
Inheritance
Flag-leaf characters
description Flag-leaf angle (FLAngle), flag-leaf area (FLarea) and flag-leaf area duration (FLADuration) are important traits in determining yield in wheat (<i>Triticum aestivum</i> L). Genetic studies on these traits are very few. The objective of this study was to determine the gene action controlling those traits in four wheat crosses. Six generations were available for each cross: parents (P<sub>1</sub> and P<sub>2</sub>), F<sub>1</sub>, F<sub>2</sub> and backcrosses (BC<sub>(F1×P1)</sub> and BC<sub>(F1×P2)</sub>). The joint scaling test described by Mather and Jinks was used to test goodness of fit to eight genetic models. Models including additivity, dominance and interallelic interactions best fitted the data for the three traits and the four crosses. Additive effects were most prevalent for FLAngle. They were also significant for FLArea and FLADuration. Dominance and epistatic gene action were also found, but the degree and direction was both trait- and genotype-specific. Heritabilities values were intermediate. Genetic progress, although slow, can be expected when selecting for these traits; however, selection would be most effective if delayed to later generations because of dominance and epistatic effects.
format Articulo
Articulo
author Simón, María Rosa
author_facet Simón, María Rosa
author_sort Simón, María Rosa
title Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
title_short Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
title_full Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
title_fullStr Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
title_full_unstemmed Inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
title_sort inheritance of flag-leaf angle, flag-leaf area and flag-leaf area duration in four wheat crosses
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/133683
work_keys_str_mv AT simonmariarosa inheritanceofflagleafangleflagleafareaandflagleafareadurationinfourwheatcrosses
bdutipo_str Repositorios
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