Development of Oryza sativa L. by Oryza punctata Kotschy ex Steud. monosomic addition lines with high value traits by interspecific hybridization
| Autor: | Kshirod K. Jena, Ricky Vinarao, Ma. LaRue E. Ballesfin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
musculoskeletal diseases
0106 biological sciences 0301 basic medicine Crops Agricultural Genetic Markers Insecta Genotype Introgression Plant disease resistance Oryza 01 natural sciences Chromosomes Plant 03 medical and health sciences INDEL Mutation Botany Genetics Animals Plant breeding Disease Resistance Plant Diseases Oryza sativa biology food and beverages General Medicine biology.organism_classification Plant Breeding 030104 developmental biology Genetic marker Hybridization Genetic Brown planthopper Oryza punctata Agronomy and Crop Science 010606 plant biology & botany Biotechnology |
| Zdroj: | TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik. 129(10) |
| ISSN: | 1432-2242 |
| Popis: | This paper describes the development of monosomic alien addition and disomic introgression lines through a cross between autotetraploid indica rice and Oryza punctata toward tapping valuable traits for rice improvement. Oryza punctata is a distantly related wild Oryza species having BB genome with untapped genetic resources for rice improvement. Low crossability between the cultivated O. sativa and O. punctata restricts the success of transferring many desirable traits into cultivated rice. Artificially induced autotetraploids of an elite breeding line, IR31917-45-3-2, were produced and crossed with O. punctata. Allotriploid F1 plants were backcrossed to IR31917-45-3-2 and generated progenies with extra chromosomes from O. punctata. Twenty BC1F1 and 59 BC2F1 plants were produced with chromosome numbers ranging from 24 (2n) to 29 (2n + 5) and 2n (24) to 26 (2n + 2), respectively. Eleven monosomic alien addition lines (MAALs) were characterized morphologically and cytologically and designated as MAAL 1–12. MAALs were genotyped using O. punctata genome-specific molecular markers and detected chromosome segments inherited from O. punctata. O. punctata introgressions across all the chromosomes of O. sativa were identified except for chromosome 8. The most frequent introgressions were observed in chromosomes 4, 6, 10, and 11, which could be the recombination hotspots between A and B genomes. Some of the qualitative traits such as black hull, purple coleoptile base, purple stigma, long awn, and short grain size from O. punctata were inherited in some disomic introgression lines (DILs). Several DILs inherited genes from O. punctata conferring resistance to brown planthopper, green leafhopper, and diseases such as bacterial blight and blast. This is the first report on successful gene transfer from O. punctata into O. sativa. |
| Databáze: | OpenAIRE |
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