Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum

被引：12

作者：

Bento, C. S. ^{[1
]}

Rodrigues, R. ^{[1
]}

Goncalves, L. S. A. ^{[1
]}

Oliveira, H. S. ^{[1
]}

Santos, M. H. ^{[1
]}

Pontes, M. C. ^{[1
]}

Sudre, C. P. ^{[1
]}

机构：

[1] Univ Estadual Norte Fluminense, Campos Dos Goytacazes, RJ, Brazil

来源：

GENETICS AND MOLECULAR RESEARCH | 2013年 / 12卷 / 02期

关键词：

Chili peppers; Genetic control of disease resistance; Genetic parameters; Heritability; Mean generation analysis; POTYVIRUS;

D O I：

10.4238/2013.April.10.3

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We investigated inheritance of resistance to Pepper yellow mosaic virus (PepYMV) in Capsicum baccatum var. pendulum accessions UENF 1616 (susceptible) crossed with UENF 1732 (resistant). Plants from generations P1, P-2, F-1, F-2, BC1: 1, and BC1:2 were inoculated and the symptoms were evaluated for 25 days. Subsequently, an area under the disease progress curve was calculated and subjected to generation means analysis. Only the average and epistatic effects were significant. The broad and narrow sense heritability estimates were 35.52 and 21.79%, respectively. The estimate of the minimum number of genes that control resistance was 7, indicating that resistance is polygenic and complex. Thus, methods to produce segregant populations that advocate selection in more advanced generations would be the most appropriate to produce chili pepper cultivars resistant to PepYMV.

引用

页码：1074 / 1082

页数：9

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