基于最佳线性无偏预测值的指标在木瓜多性状优良品系选择中的应用

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
J. G. S. Santana, H. C. C. Ramos, Renato Santa‐Catarina, J. C. F. Vettorazzi, D. Miranda, A. A. V. Pirovani, T. P. S. Poltronieri, A. O. N. Azevedo, R. P. Duarte, Dieimes Bohry, M. G. Pereira
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引用次数: 0

摘要

:选择指数代表育种计划同时获得各种重要性状遗传增益的实际努力。因此,本研究通过农艺权重加权的残差或限制性最大似然/最佳线性无偏预测(REML/BLUP)方法预测的基因型值为基础,利用指数对f5品种的果实品质进行组合选择。通过双亲本杂交获得的97个f5木瓜品系,对其果实品质的主要性状进行了评价。偏差分析和遗传参数分析结果表明,存在遗传变异,表明选择过程可能成功。根据选择指标,筛选出果实品质优良的“福尔摩沙”型29个品系。选择指数策略结合了与农艺重量相关的多个感兴趣性状的blp,可以最大限度地提高遗传进展,同时丢弃不太有希望的基因型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Use of an index based on best linear unbiased prediction value for the selection of superior papaya lines for multiple traits
: Selection indexes represent the real efforts of a breeding program to obtain genetic gains for various significant traits simultaneously. As such, this study selected superior F 5 lines by combined selection for fruit quality using an index based on predicted genotypic values via residual or restricted maximum likelihood/best linear unbiased prediction (REML/BLUP) methodology weighted by agronomic weights. To do so, 97 F 5 papaya lines obtained by the single seed descent method, resulting from the biparental cross between the genotypes JS-12 and Sekati, were evaluated for the main traits related to fruit quality. Results of the analysis of deviance and the genetic parameters indicated that there was genetic variability, indicating possible success in the selection process. Based on the selection index, 29 lines were selected as superior for fruit quality with ‘Formosa’ pattern. The strategy of the selection index combining BLUPs of multiple traits of interest associated with agronomic weights allows maximizing genetic progress while discarding less-promising genotypes.
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来源期刊
Bragantia
Bragantia AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.40
自引率
8.30%
发文量
33
审稿时长
4 weeks
期刊介绍: Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).
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