Protoplast fusion for crop improvement and breeding in China
2013
Wang, Juan | Jiang, Jinjin | Wang, Youping
Protoplast fusion offers an opportunity for circumventing barriers to sexual reproduction and allows for gene transfer of nuclear and cytoplasmic genomes to enrich the gene pool of cultivated species. Moreover, protoplast fusion effectively generates novel germplasm for elite breeding of conventional crosses and promotes crop improvement in existing cultivars. Over the past few decades, protoplast fusion in China has considerably progressed not only for food crops but also for economic plants. In this review, we present and discuss the development of somatic hybrids in wheat, rapeseed, citrus, and cotton, some of which are already in use or have potential for future commercial use in China. For example, an elite salt- and drought-resistant line, Shangrong No. 3, has already been registered as a commercial wheat cultivar. Some other hybrids have been found to have disease resistance as well as modified fatty acids, high oil and protein contents, novel cytoplasmic male sterility, and numerous other desirable agronomic characteristics that are useful for further breeding.
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