Sizing up cucumbers
Sizing up cucumbers
2019-04-26 From:FoodProcessing
In an effort to identify the genetic basis of fruit length variation in cucumber, a team of researchers at China Agricultural University has discovered the reason for fruit length variation in cucumbers. This discovery could provide benefits for crop breeders of the future. Led by Xiaolan Zhang, the research team analysed 150 cucumber lines with different fruit lengths. They identified two variants of a gene named CsFUL1 that differed by a single base pair in the DNA code. The CsFUL1A variant appeared in long-fruited East Asian cucumbers, whereas the CsFUL1C variant was randomly distributed in wild and semi-wild cucumber populations. The researchers demonstrated that decreased expression of CsFUL1A was responsible for longer fruit, whereas shorter fruit was caused by increased expression of the A variant, or by the C variant at this locus, which they showed is not fully functional. This research has singled out a key modulator of fruit length and sets the stage for developing strategies to manipulate fruit length in cucumber breeding. The first author of the research paper, Jianyu Zhao, said the next step was to work on other fruit. “We aim to identify the upstream regulators of CsFUL1A in fruit length variation in cucumber and to dissect the relationship between CsFUL1A and other fruit length genes.” The research paper can be viewed here. Image credit: Yiqun Weng ©American Society of Plant Biologists ASPB.
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