נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Biometric analyses of the inheritance of resistance to Didymella rabiei in chickpea
Year:
2002
Source of publication :
Phytopathology
Authors :
Bonfil, David J.
;
.
Shtienberg, Dan
;
.
Volume :
92
Co-Authors:
Lichtenzveig, J., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shtienberg, D., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Zhang, H.B., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Bonfil, D.J., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Abbo, S., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Facilitators :
From page:
417
To page:
423
(
Total pages:
7
)
Abstract:
Historically, the response of chickpea (Cicer arietinum L.) to Didymella rabiei (causal agent of Ascochyta blight) has been mainly related to as complete resistance and it was commonly assayed with qualitative (nonparametric) scales. Two reciprocal populations, derived from intra-specific crosses between a moderately resistant late flowering Israeli cultivar and a highly susceptible early flowering Indian accession, were tested at F3 and F4 generations in 1998 and 1999, respectively. A quantitative (parametric) assessment (percent disease severity) was used to evaluate the chickpea field response to Ascochyta blight. The transformed relative area under the disease progress curve (tRAUDPC) was calculated for each experimental unit for further analyses. Heritability estimates of the tRAUDPC were relatively high (0.67 to 0.85) in both generations for both reciprocal populations. The frequency distributions of tRAUDPC of the populations were continuous and significantly departed from normality (Shapiro-Wilk W test; P of W < 0.0001), being all platykurtic and skewed toward either the resistant or the susceptible parental lines. The presence of major genes was examined by testing the relationship between the F3 and F4 family means and the within-family variances (Fain's test). Analyses of these relationships suggested that segregation of a single (or few) quantitative trait locus with major effect and possibly other minor loci was the predominant mode of inheritance. The correlation estimates between the resistance and days to flower (r = -0.19 to -0.44) were negative and significantly (P = 0.054 to 0.001) different from zero, which represents a breeding constraint in the development of early flowering cultivars with Ascochyta blight resistance.
Note:
Related Files :
Cicer arietinum
disease resistance
gene segregation
genetic transformation
India
inheritance
Israel
Plant Breeding
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29040
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:43
You may also be interested in
Scientific Publication
Biometric analyses of the inheritance of resistance to Didymella rabiei in chickpea
92
Lichtenzveig, J., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shtienberg, D., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Zhang, H.B., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Bonfil, D.J., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Abbo, S., Department of Field Crops, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Biometric analyses of the inheritance of resistance to Didymella rabiei in chickpea
Historically, the response of chickpea (Cicer arietinum L.) to Didymella rabiei (causal agent of Ascochyta blight) has been mainly related to as complete resistance and it was commonly assayed with qualitative (nonparametric) scales. Two reciprocal populations, derived from intra-specific crosses between a moderately resistant late flowering Israeli cultivar and a highly susceptible early flowering Indian accession, were tested at F3 and F4 generations in 1998 and 1999, respectively. A quantitative (parametric) assessment (percent disease severity) was used to evaluate the chickpea field response to Ascochyta blight. The transformed relative area under the disease progress curve (tRAUDPC) was calculated for each experimental unit for further analyses. Heritability estimates of the tRAUDPC were relatively high (0.67 to 0.85) in both generations for both reciprocal populations. The frequency distributions of tRAUDPC of the populations were continuous and significantly departed from normality (Shapiro-Wilk W test; P of W < 0.0001), being all platykurtic and skewed toward either the resistant or the susceptible parental lines. The presence of major genes was examined by testing the relationship between the F3 and F4 family means and the within-family variances (Fain's test). Analyses of these relationships suggested that segregation of a single (or few) quantitative trait locus with major effect and possibly other minor loci was the predominant mode of inheritance. The correlation estimates between the resistance and days to flower (r = -0.19 to -0.44) were negative and significantly (P = 0.054 to 0.001) different from zero, which represents a breeding constraint in the development of early flowering cultivars with Ascochyta blight resistance.
Scientific Publication
You may also be interested in