Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers
Rice breeders are encouraged to classify potential F<sub>1</sub>-hybrids without crossing all viable mixtures by testing depending on genetic distance due to lack of labor and time in yield trials. The goals of this research were to establish heterosis and investigate the relationship be...
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MDPI AG
2022-06-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/11/12/1532 |
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| author | Khaled F. M. Salem Mousa A. Alghuthaymi Abdelmoaty B. Elabd Elsayed A. Elabsawy Hossam H. Mierah |
| author_facet | Khaled F. M. Salem Mousa A. Alghuthaymi Abdelmoaty B. Elabd Elsayed A. Elabsawy Hossam H. Mierah |
| author_sort | Khaled F. M. Salem |
| collection | DOAJ |
| description | Rice breeders are encouraged to classify potential F<sub>1</sub>-hybrids without crossing all viable mixtures by testing depending on genetic distance due to lack of labor and time in yield trials. The goals of this research were to establish heterosis and investigate the relationship between genomic distance and agronomic attributes under drought. Half-diallel mating design, 28 F<sub>1′</sub><sup>s</sup> and 8 parents were evaluated under drought and genotyped using 11 microsatellite markers. In total, 39 alleles were detected. Results indicated that the greatest heterotic effects for grain yield were observed in Sakha 103 × Sakha 104 and GZ7576-10-3-2-1 × Giza 179, which gave 29.32–22.57% heterosis, respectively. Heterosis for grain yield in these crosses occurred as a rise in panicle weight, filled grains per panicle, low sterility and 100-grain weight. Correlations of marker-based genetic distance with mid-parent heterosis were positively and significantly correlated with sterility percentage (<i>r</i> = 0.390 *, <i>p</i> < 0.05). However, better-parent heterosis was positively and significantly correlated with sterility percentage (<i>r</i> = 0.352 *, <i>p</i> < 0.05) and grain yield per plant (<i>r</i> = 0.345 *, <i>p</i> < 0.05). Associations indicate that high grain yield and low sterility of rice crosses can be expected from microsatellite marker-defined distances of parents. This study indicated that genetic distance is very effective for heterosis prediction in breeding programs. |
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| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T22:43:38Z |
| publishDate | 2022-06-01 |
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| spelling | doaj.art-8c7a5245299c4a1e8b61cb4807045fe52023-11-23T18:34:08ZengMDPI AGPlants2223-77472022-06-011112153210.3390/plants11121532Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite MarkersKhaled F. M. Salem0Mousa A. Alghuthaymi1Abdelmoaty B. Elabd2Elsayed A. Elabsawy3Hossam H. Mierah4Plant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City, Sadat City 22857, EgyptBiology Department, Science and Humanities College, Shaqra University, Alquwayiyah 11726, Saudi ArabiaField Crops Research Institute, Agricultural Research Center (ARC), Giza 33717, EgyptBioinformatics Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City, Sadat City 22857, EgyptPlant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City, Sadat City 22857, EgyptRice breeders are encouraged to classify potential F<sub>1</sub>-hybrids without crossing all viable mixtures by testing depending on genetic distance due to lack of labor and time in yield trials. The goals of this research were to establish heterosis and investigate the relationship between genomic distance and agronomic attributes under drought. Half-diallel mating design, 28 F<sub>1′</sub><sup>s</sup> and 8 parents were evaluated under drought and genotyped using 11 microsatellite markers. In total, 39 alleles were detected. Results indicated that the greatest heterotic effects for grain yield were observed in Sakha 103 × Sakha 104 and GZ7576-10-3-2-1 × Giza 179, which gave 29.32–22.57% heterosis, respectively. Heterosis for grain yield in these crosses occurred as a rise in panicle weight, filled grains per panicle, low sterility and 100-grain weight. Correlations of marker-based genetic distance with mid-parent heterosis were positively and significantly correlated with sterility percentage (<i>r</i> = 0.390 *, <i>p</i> < 0.05). However, better-parent heterosis was positively and significantly correlated with sterility percentage (<i>r</i> = 0.352 *, <i>p</i> < 0.05) and grain yield per plant (<i>r</i> = 0.345 *, <i>p</i> < 0.05). Associations indicate that high grain yield and low sterility of rice crosses can be expected from microsatellite marker-defined distances of parents. This study indicated that genetic distance is very effective for heterosis prediction in breeding programs.https://www.mdpi.com/2223-7747/11/12/1532agronomic traitsdroughtF<sub>1</sub>-hybridsheterosisgenetic distancerice (<i>Oryza sativa</i> L.) |
| spellingShingle | Khaled F. M. Salem Mousa A. Alghuthaymi Abdelmoaty B. Elabd Elsayed A. Elabsawy Hossam H. Mierah Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers Plants agronomic traits drought F<sub>1</sub>-hybrids heterosis genetic distance rice (<i>Oryza sativa</i> L.) |
| title | Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers |
| title_full | Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers |
| title_fullStr | Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers |
| title_full_unstemmed | Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers |
| title_short | Prediction of Heterosis for Agronomic Traits in Half-Diallel Cross of Rice (<i>Oryza sativa</i> L.) under Drought Stress Using Microsatellite Markers |
| title_sort | prediction of heterosis for agronomic traits in half diallel cross of rice i oryza sativa i l under drought stress using microsatellite markers |
| topic | agronomic traits drought F<sub>1</sub>-hybrids heterosis genetic distance rice (<i>Oryza sativa</i> L.) |
| url | https://www.mdpi.com/2223-7747/11/12/1532 |
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