Expected genetic gains from mono trait and indexbased selection in advanced bread wheat (Triticum aestivum L.) populations

Q3 Agricultural and Biological Sciences

Revista Facultad Nacional de Agronomia Medellin Pub Date : 2020-05-01 DOI:10.15446/rfnam.v73n2.77806

Z. Fellahi, A. Hannachi, H. Bouzerzour

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引用次数: 16

Abstract

This study aimed at evaluating the expected gains from selection obtained based upon direct, indirect, and index-based selection in a set of 599 bread wheat lines. The experiment was carried out at the experimental field of INRAA institute, Setif research unit (Algeria), in a Federer augmented block design including three controls. A wide range of genetic variability was observed among lines for the eleven traits assessed. The results indicated that index-based selection and selection based on grain yield expressed higher expected genetic gain than direct and indirect mono-trait-based selection. The best 15 selected lines exhibited higher grain yield than the control varieties, and they were clustered in three groups that contrasted mainly for the flag-leaf area, thousand-kernel weight, biomass, and harvest index. The index-based selection appears as a useful tool for the rapid selection of early filial generations, enriching selected breeding materials with desirable alleles and reducing the number of years required to combine these traits in elite varieties.

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先进面包小麦(Triticum aestivum L.)群体单性状和指数选择的预期遗传收益

本研究旨在评估599个面包小麦品系的直接选择、间接选择和指数选择的预期收益。实验在阿尔及利亚Setif研究单位INRAA研究所的试验场进行，采用费德勒增强块设计，包括三个对照组。11个性状在不同品系间存在较大的遗传变异。结果表明，指数选择和产量选择比单性状直接选择和间接选择表达了更高的预期遗传增益。15个最佳选育品系的籽粒产量均高于对照品种，并分成3组，主要以旗叶面积、千粒重、生物量和收获指数进行对比。指数选择是快速选择早期子代的一种有效工具，它丰富了所选育种材料中所需的等位基因，减少了这些性状在优良品种中组合所需的年数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Facultad Nacional de Agronomia Medellin Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： La Revista Facultad Nacional de Agronomía Medellín (RFNA), de la Universidad Nacional de Colombia, Sede Medellín, Facultad de Ciencias Agrarias, es una publicación científica editada desde el año 1939, en formato impreso y digital y de acceso abierto desde la web —sin costo para autores y lectores—. Está orientada a investigadores que crean conocimiento disciplinar y multidisciplinar que articula la ciencia y la tecnología para hacer más productivo el campo a nivel empresarial y de economía campesina. La Revista tiene como objetivo divulgar resultados de investigación mediante artículos originales, inéditos y arbitrados (peer review) de carácter científico que respondan a preguntas específicas y que proporcionen sustento y pruebas a una hipótesis, en aspectos relacionados con las Ciencias Agronómicas, Producción animal, Ciencias Forestales, Ingeniería Agrícola, de Alimentos y otras afines que contribuyan a la solución de los limitantes del agro a nivel nacional, regional e internacional. La Revista recibe y publica, sin ningún costo, artículos en idioma inglés de investigación, revisión, reseñas y cartas al editor. Desde el 2017 la periodicidad de publicación es cuatrimestral, se publican tres números al año con circulación nacional e internacional, en los siguientes períodos: Enero - Abril Mayo - Agosto Septiembre - Diciembre This journal does not charge APCs or submission charges.