Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight
Ascochyta blight resistance was studied in half-diallel cross involving eight genotypes of chickpea at seedling and adult stages. The disease was rated in the greenhouse with a modified scale from 0 to 100%. The diallel analysis was performed on 28 F1 and their F2. The results were analyzed with the...
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Wiley
2015-01-01
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| Series: | Advances in Agriculture |
| Online Access: | http://dx.doi.org/10.1155/2015/832597 |
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| author | Mohamed Labdi Samia Ghomari Samia Hamdi |
| author_facet | Mohamed Labdi Samia Ghomari Samia Hamdi |
| author_sort | Mohamed Labdi |
| collection | DOAJ |
| description | Ascochyta blight resistance was studied in half-diallel cross involving eight genotypes of chickpea at seedling and adult stages. The disease was rated in the greenhouse with a modified scale from 0 to 100%. The diallel analysis was performed on 28 F1 and their F2. The results were analyzed with the Hayman and Griffing methods. The general combining ability is most important for two generations, is highly significant for the two stages, and is more important than specific combining ability. This result reflects a strong preponderance of additive effects and epistasis additive × additive with respect to dominance effects in this material for the two generations, which shows the predominance of additive versus dominance. Estimates of heritability are very high. The additive effects have the highest value indicating the importance of this component for resistance to Ascochyta. For seedling stage, the negative sign of F for both generations indicates that there are much more recessive alleles that affect resistance to the disease. In adult stage, F is positive in both generations and shows more dominant alleles that control plant reaction to pathogen. H2 is positive in both generations which show that dominant genes are acting mostly towards the susceptibility. |
| format | Article |
| id | doaj-art-cfa9aedf63a746238bb6a0eb42c1e20c |
| institution | DOAJ |
| issn | 2356-654X 2314-7539 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Agriculture |
| spelling | doaj-art-cfa9aedf63a746238bb6a0eb42c1e20c2025-08-20T03:19:46ZengWileyAdvances in Agriculture2356-654X2314-75392015-01-01201510.1155/2015/832597832597Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta BlightMohamed Labdi0Samia Ghomari1Samia Hamdi2INRA-ALGERIA, 22000 Sidi Bel Abbès, AlgeriaUniversité Djillali Liabès, 22000 Sidi Bel Abbès, AlgeriaINRA-ALGERIA, 22000 Sidi Bel Abbès, AlgeriaAscochyta blight resistance was studied in half-diallel cross involving eight genotypes of chickpea at seedling and adult stages. The disease was rated in the greenhouse with a modified scale from 0 to 100%. The diallel analysis was performed on 28 F1 and their F2. The results were analyzed with the Hayman and Griffing methods. The general combining ability is most important for two generations, is highly significant for the two stages, and is more important than specific combining ability. This result reflects a strong preponderance of additive effects and epistasis additive × additive with respect to dominance effects in this material for the two generations, which shows the predominance of additive versus dominance. Estimates of heritability are very high. The additive effects have the highest value indicating the importance of this component for resistance to Ascochyta. For seedling stage, the negative sign of F for both generations indicates that there are much more recessive alleles that affect resistance to the disease. In adult stage, F is positive in both generations and shows more dominant alleles that control plant reaction to pathogen. H2 is positive in both generations which show that dominant genes are acting mostly towards the susceptibility.http://dx.doi.org/10.1155/2015/832597 |
| spellingShingle | Mohamed Labdi Samia Ghomari Samia Hamdi Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight Advances in Agriculture |
| title | Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight |
| title_full | Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight |
| title_fullStr | Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight |
| title_full_unstemmed | Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight |
| title_short | Combining Ability and Gene Action Estimates of Eight Parent Diallel Crosses of Chickpea for Ascochyta Blight |
| title_sort | combining ability and gene action estimates of eight parent diallel crosses of chickpea for ascochyta blight |
| url | http://dx.doi.org/10.1155/2015/832597 |
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