Developing climate-resilient, direct-seeded, adapted multiple-stress-tolerant rice applying genomics-assisted breeding
| dc.creator | Sandhu, Nitika | |
| dc.creator | Yadav, Shailesh | |
| dc.creator | Catolos, Margaret | |
| dc.creator | Cruz, Ma Teresa Sta | |
| dc.creator | Kumar, Arvind | |
| dc.date | 2021-04-15 | |
| dc.date | 2024-12-19T12:53:43Z | |
| dc.date | 2024-12-19T12:53:43Z | |
| dc.date.accessioned | 2026-06-27T04:08:44Z | |
| dc.description | There is an urgent need to breed dry direct-seeded adapted rice varieties in order to address the emerging scenario of water–labor shortage. The aim of this study was to develop high-yielding, direct-seeded adapted varieties utilizing biparental to multiparental crosses involving as many as six different parents in conventional breeding programs and 12 parents in genomics-assisted breeding programs. The rigorous single plant selections were followed from the F2 generation onwards utilizing phenotypic selection and quantitative trait locus (QTL)/gene-based/linked markers for tracking the presence of desirable alleles of targeted QTL/genes. In conventional breeding, multiparent lines had significantly higher yields (2,072–6,569 kg ha−1) than the biparental lines (1,493–6,326 kg ha−1). GAB lines derived from multiparent crosses had significantly higher (3,293–6,719 kg ha−1) yields than the multiparent lines from conventional breeding (2,072–6,569 kg ha−1). Eleven promising lines from genomics-assisted breeding carrying 7–11 QTL/genes and eight lines from conventional breeding with grain-yield improvement from 727 to 1,705 kg ha−1 and 68 to 902 kg ha−1, respectively, over the best check were selected. The developed lines may be released as varieties/parental lines to develop better rice varieties for direct-seeded situations or as novel breeding material to study genetic interactions. | |
| dc.identifier | https://hdl.handle.net/10568/164295 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/23009 | |
| dc.language | en | |
| dc.publisher | Frontiers Media | |
| dc.rights | Open Access | |
| dc.source | Sandhu, Nitika; Yadav, Shailesh; Catolos, Margaret; Cruz, Ma Teresa Sta and Kumar, Arvind. 2021. Developing climate-resilient, direct-seeded, adapted multiple-stress-tolerant rice applying genomics-assisted breeding. Front. Plant Sci., Volume 12 | |
| dc.subject | plant science | |
| dc.title | Developing climate-resilient, direct-seeded, adapted multiple-stress-tolerant rice applying genomics-assisted breeding | |
| dc.type | Journal Article |