Genetic control of common bean reaction to angular leaf spot

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI:10.12702/1984-7033.V03N03A05

H. A. Mendonça, J. B. Santos, M. Antonio, P. Ramalho

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引用次数: 12

Abstract

The Carioca MG (susceptible = P 1 ) and Perola (resistant = P 2 ) cultivars were used as parents in a cross aiming at investigating the genetic control of the common bean plant reaction to Phaeoisariopsis griseola. Two hundred and fifty-one families (141 F 2:3 , 53 F 2 RC 11 and 57 RC 12 ) from this cross were evaluated for angular leaf spot severity in the leaves and pods, in two generations, under natural incidence of the pathogen. The genetic variance components, heritability in the broad ( 2 h ) and narrow ( 2 h ) senses and number of genes that control the reaction to angular leaf spot were estimated. The families were genetically different for level of resistance to the pathogen, and varied from 59.20% to 72.41% and varied from 19.32% to 73.79% for the leaf analysis. For reaction to the pathogen in the pods, the varied from 55.00% to 68.22% and was nil, indicating the presence of dominant alleles in the control of the trait, and of genes different from those responsible for the control of the disease in the leaves. Only one gene was estimated for the genetic control of the reaction to the pathogen in the leaves and two genes in the pods.

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普通豆对角斑病反应的遗传控制

以Carioca MG(敏感= p1)和Perola(抗性= p2)品种为亲本，研究了普通豆科植物对灰褐毛病菌反应的遗传控制。在自然侵染条件下，对该杂交组合的251个家系(141 f2:3、53 f2r11和57 r12)进行了2代叶片和荚果角斑病严重程度的评价。估计了叶片角斑病的遗传变异成分、宽、窄两种感官的遗传力以及控制叶片角斑病反应的基因数量。不同家系对病原菌的抗性水平差异较大，分别为59.20% ~ 72.41%和19.32% ~ 73.79%。荚果对病原菌的反应从55.00%到68.22%不等，为零，表明存在控制该性状的显性等位基因，以及与叶片中负责控制该性状的基因不同的基因。据估计，只有一个基因在叶片中控制对病原菌的反应，两个基因在豆荚中控制。

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来源期刊

Crop Breeding and Applied Biotechnology AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.