Identification and analysis of nine new flo2 allelic mutants in rice
Copyright © 2024 Elsevier GmbH. All rights reserved.
| Veröffentlicht in: | Journal of plant physiology. - 1979. - 301(2024) vom: 01. Okt., Seite 154300 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2024
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| Zugriff auf das übergeordnete Werk: | Journal of plant physiology |
| Schlagworte: | Journal Article Allelic mutants FLO2 Rice Starch Storage protein Plant Proteins 9005-25-8 |
| Zusammenfassung: | Copyright © 2024 Elsevier GmbH. All rights reserved. FLO2 is involved in grain development and storage substance synthesis in rice, and therefore can regulate grain size and quality. In this study, we identified 4 new flo2 allelic mutants with nonsense and frameshift mutation in the exon of 6, 10, 11 and 21 and 5 new flo2 allelic mutants with alternative splicing and frameshift mutation at the splicing site of intron 13, 14, 16 and 17. Compared with wild-type rice, the outer endosperm of flo2 mutants was transparent, and the inner endosperm was floury. Different mutation sites and types of FLO2 significantly decreased kernel width, thickness and weight to some extent. The contents of storage protein, starch, amylose and amylopectin showed significant decrease at different levels among 9 flo2 mutants. The expressions of most storage protein synthesis genes and starch synthesis-related genes were significantly down-regulated, and exhibited different ranges of variation among different flo2 mutants. This study could add helpful information for the roles of flo2 alleles in rice quality regulation and provide abundant germplasm resources for rice quality breeding |
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| Beschreibung: | Date Completed 23.08.2024 Date Revised 27.08.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1618-1328 |
| DOI: | 10.1016/j.jplph.2024.154300 |