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 be...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Phytopathological Society
2002
|
| Online Access: | http://hdl.handle.net/20.500.11937/6279 |
| _version_ | 1848745030674546688 |
|---|---|
| author | Lichtenzveig, Judith Shtienberg, D. Zhang, H. Bonfil, D. Abbo, S. |
| author_facet | Lichtenzveig, Judith Shtienberg, D. Zhang, H. Bonfil, D. Abbo, S. |
| author_sort | Lichtenzveig, Judith |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T06:10:53Z |
| format | Journal Article |
| id | curtin-20.500.11937-6279 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:10:53Z |
| publishDate | 2002 |
| publisher | American Phytopathological Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-62792017-01-30T10:51:54Z Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea Lichtenzveig, Judith Shtienberg, D. Zhang, H. Bonfil, D. Abbo, S. 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. 2002 Journal Article http://hdl.handle.net/20.500.11937/6279 American Phytopathological Society restricted |
| spellingShingle | Lichtenzveig, Judith Shtienberg, D. Zhang, H. Bonfil, D. Abbo, S. Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title | Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title_full | Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title_fullStr | Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title_full_unstemmed | Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title_short | Biometric Analyses of the Inheritance of Resistance to Didymella rabiei in Chickpea |
| title_sort | biometric analyses of the inheritance of resistance to didymella rabiei in chickpea |
| url | http://hdl.handle.net/20.500.11937/6279 |