期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 170, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2022.114012
关键词
Kiwifruit; Tetraploidy; Red -fleshed fruit; Multi-omics; Biosynthesis
资金
- National key R&D project, China-New Zealand Belt and Road joint laboratory construction and joint research [2020YFE0205000]
- Sichuan Province Science and Technology Support Program [2020YJ0248, 2021YFYZ0010]
- National Natural Science Foundation of China [32200260]
- Science and Technology Program of Sichuan Province for outstanding Young Scholar [2022JDJJQ0057]
This study successfully bred two red-fleshed kiwifruit hybrids with excellent appearance quality through hybridization method. The phenotypes of these hybrids are stably inherited with big and red-fleshed fruit. Analysis results show that both hybrids are rich in flavonoids, carotenoids and vitamin C, making them suitable candidates for new tetraploid kiwifruit varieties.
Compared to traditional diploids, polyploid red-fleshed kiwifruit varieties usually present excellent character-istics such as larger fruit, storage resistance and strong stress resistance. In this study, the male seed progeny of the wild red-fleshed tetraploid germplasm, 'FXJX-CK-04137' (04137), was crossed with the tetraploid yellow -fleshed kiwifruit 'Jinshi 2' (J2). Two lines (Line O5D and Line 11E) were filtered out with excellent appear-ance quality from thirty F1 progenies. The phenotypes are stably inherited with big and red-fleshed fruit by progeny analysis for several years. The transcriptome and metabolome of fruit of both lines and their parental lines were integrated and analyzed to pursue nutritional qualities. The result shows that both F1 hybrids are rich in flavonoids, carotenoids and vitamin C, making them good candidates for new tetraploid varieties. Ultimately, our data indicate that using tetraploid kiwifruit varieties is an efficient way to breed new commercial varieties with enhanced nutrition.
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