http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
Variation in the flowering gene SELF PRUNING 5G promotes day-neutrality and early yield in tomato
Soyk, Sebastian,Mü,ller, Niels A,Park, Soon Ju,Schmalenbach, Inga,Jiang, Ke,Hayama, Ryosuke,Zhang, Lei,Van Eck, Joyce,Jimé,nez-Gó,mez, José,M,Lippman, Zachary B Nature Publishing Group, a division of Macmillan P 2017 Nature genetics Vol.49 No.1
<P>Plants evolved so that their flowering is triggered by seasonal changes in day lengths. However, day-length sensitivity in crops limits their geographical range of cultivation, and thus modification of the photoperiod response was critical for their domestication(2-11). Here we show that loss of day-length-sensitive flowering in tomato was driven by the florigen paralog and flowering repressor SELF-PRUNING 5G (SP5G). SP5G expression is induced to high levels during long days in wild species, but not in cultivated tomato because of cis-regulatory variation. CRISPR/Cas9-engineered mutations in SP5G cause rapid flowering and enhance the compact determinate growth habit of field tomatoes, resulting in a quick burst of flower production that translates to an early yield. Our findings suggest that pre-existing variation in SP5G facilitated the expansion of cultivated tomato beyond its origin near the equator in South America, and they provide a compelling demonstration of the power of gene editing to rapidly improve yield traits in crop breeding.</P>