Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L
Utilization of “hidden genes” from wild species has emerged as a novel option for enrichment of genetic diversity for productivity traits. In rice we have generated more than 2000 lines having introgression from ‘A’ genome-donor wild species of rice in the genetic background of popular varieties PR1...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Public Library of Science
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/150605 |
| _version_ | 1855521585766596608 |
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| author | Gaikwad, Kiran B. Singh, Naveen Bhatia, Dharminder Kaur, Rupinder Bains, Navtej S. Bharaj, Tajinder S. |
| author_browse | Bains, Navtej S. Bharaj, Tajinder S. Bhatia, Dharminder Gaikwad, Kiran B. Kaur, Rupinder Singh, Naveen |
| author_facet | Gaikwad, Kiran B. Singh, Naveen Bhatia, Dharminder Kaur, Rupinder Bains, Navtej S. Bharaj, Tajinder S. |
| author_sort | Gaikwad, Kiran B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Utilization of “hidden genes” from wild species has emerged as a novel option for enrichment of genetic diversity for productivity traits. In rice we have generated more than 2000 lines having introgression from ‘A’ genome-donor wild species of rice in the genetic background of popular varieties PR114 and Pusa44 were developed. Out of these, based on agronomic acceptability, 318 lines were used for developing rice hybrids to assess the effect of introgressions in heterozygous state. These introgression lines and their recurrent parents, possessing fertility restoration ability for wild abortive (WA) cytoplasm, were crossed with cytoplasmic male sterile (CMS) line PMS17A to develop hybrids. Hybrids developed from recurrent parents were used as checks to compare the performance of 318 hybrids developed by hybridizing alien introgression lines with PMS17A. Seventeen hybrids expressed a significant increase in yield and its component traits over check hybrids. These 17 hybrids were re-evaluated in large-size replicated plots. Of these, four hybrids, viz., ILH299, ILH326, ILH867 and ILH901, having introgressions from O. rufipogon and two hybrids (ILH921 and ILH951) having introgressions from O. nivara showed significant heterosis over parental introgression line, recurrent parents and check hybrids for grain yield-related traits. Alien introgressions were detected in the lines taken as male parents for developing six superior hybrids, using a set of 100 polymorphic simple sequence repeat (SSR) markers. Percent introgression showed a range of 2.24 from in O. nivara to 7.66 from O. rufipogon. The introgressed regions and their putative association with yield components in hybrids is reported and discussed. |
| format | Journal Article |
| id | CGSpace150605 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace1506052025-01-24T08:53:58Z Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L Gaikwad, Kiran B. Singh, Naveen Bhatia, Dharminder Kaur, Rupinder Bains, Navtej S. Bharaj, Tajinder S. rice varieties Utilization of “hidden genes” from wild species has emerged as a novel option for enrichment of genetic diversity for productivity traits. In rice we have generated more than 2000 lines having introgression from ‘A’ genome-donor wild species of rice in the genetic background of popular varieties PR114 and Pusa44 were developed. Out of these, based on agronomic acceptability, 318 lines were used for developing rice hybrids to assess the effect of introgressions in heterozygous state. These introgression lines and their recurrent parents, possessing fertility restoration ability for wild abortive (WA) cytoplasm, were crossed with cytoplasmic male sterile (CMS) line PMS17A to develop hybrids. Hybrids developed from recurrent parents were used as checks to compare the performance of 318 hybrids developed by hybridizing alien introgression lines with PMS17A. Seventeen hybrids expressed a significant increase in yield and its component traits over check hybrids. These 17 hybrids were re-evaluated in large-size replicated plots. Of these, four hybrids, viz., ILH299, ILH326, ILH867 and ILH901, having introgressions from O. rufipogon and two hybrids (ILH921 and ILH951) having introgressions from O. nivara showed significant heterosis over parental introgression line, recurrent parents and check hybrids for grain yield-related traits. Alien introgressions were detected in the lines taken as male parents for developing six superior hybrids, using a set of 100 polymorphic simple sequence repeat (SSR) markers. Percent introgression showed a range of 2.24 from in O. nivara to 7.66 from O. rufipogon. The introgressed regions and their putative association with yield components in hybrids is reported and discussed. 2014 2024-08-01T02:52:30Z 2024-08-01T02:52:30Z Journal Article https://hdl.handle.net/10568/150605 en Open Access Public Library of Science Gaikwad, Kiran B.; Singh, Naveen; Bhatia, Dharminder; Kaur, Rupinder; Bains, Navtej S.; Bharaj, Tajinder S. 2014. Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L. PLoS ONE 9(6): e96939. https://doi.org/10.1371/journal.pone.0096939 |
| spellingShingle | rice varieties Gaikwad, Kiran B. Singh, Naveen Bhatia, Dharminder Kaur, Rupinder Bains, Navtej S. Bharaj, Tajinder S. Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title | Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title_full | Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title_fullStr | Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title_full_unstemmed | Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title_short | Yield-enhancing Heterotic QTL transferred from wild species to cultivated rice Oryza sativa L |
| title_sort | yield enhancing heterotic qtl transferred from wild species to cultivated rice oryza sativa l |
| topic | rice varieties |
| url | https://hdl.handle.net/10568/150605 |
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