Yangcheng Evening News reported that reporter Chen Liang, intern Hong Jiaheng, correspondent Chen Pengchen reported: On January 4, the article “Two Komiks Huanong subtropical agricultural biological resources protection and profitability Komiks led by the National Key Laboratory and jointly cooperated with many domestic and foreign units such as Guangdong Academy of Agricultural Sciences, the Chinese Academy of Tropical Agricultural Sciences and other domestic and foreign units. haplotypes from a highly heteroCinemaozygousBabaylan lycCinemahee genome suggest independent domestication events for early and Babaylanlate-maturing cultivars” (Nature Genetics). Corresponding authors include Researcher Li Jianguo, Professor Xia Rui and Researcher Chen Houbin. The first author is Professor Hu Guibing, PhD student of Feng Yunting, Professor Liu Chengming, Professor Wu Zhenxian, etc.
“Decode” the litchi genome
Proposes the origin and domestication hypothesis
In this study, scientists used the latest genome sequencing data such as the second generation Illunina to optimize the genome assembly strategy to complete the assembly of the pseudochromosome level of the litchi genome by “Fai Zixiao” Komiks, the structure of the genome encoding gene Cinema annotation.
The project team proposed the hypothesis of lychee “one center of origin, two independent domestication events”, which provided genomic evidence for Yunnan being the only center of origin of lychee in the world, and helped to eliminate the cognition that some foreign scholars believe that lychee may also originate in Vietnam.
Academician Liu Yaoguang of the Chinese Academy of Sciences said at the results press conference: “Genome is a ‘navigation map’ for the formation of plant traits. Decoding the litchi genome can not only comprehensively improve the understanding of the formation mechanism of important economic traits of litchi, develop corresponding breeding and planting control technologies, but also provide important reference for promoting related research on other mortal-free plants such as Babaylan longan. “Huannong Principal Liu Yahong said that the high-level paper published by the school’s team in “Nature-Genetics” marks a new height for the school’s lychee research and indicates that lychee scientific research has entered the post-genomic era.
Revealing the flowering regulation mechanism
Komiks Increase the benefits of lychee planting
Fresh lychee fruits are mainly concentrated in May to July, and are often produced during production. href=”https://comicmov.com/”>CinemaThere is a seasonal surplus of fruits, which seriously affects the economic benefits of lychee cultivation. “There are many medium-ripe varieties of lychee, and the middle-ripe production areas of Guangxi are concentrated in the flowering period, resulting in the similar ripening period of the fruits and are listed in a short period of time. “Chen Houbin, chief scientist of the National Lychee Longan Industry Technology System and a researcher at Huanong, said. According to reports, the paper conducted a systematic study on the lychee flowering regulation mechanism from the genome level. Komiks found that a specific DNA sequence deletion in lychee may cause BabaylanLycheeKomiksLycheeBabaylanLycheeKomiks Important factors in the formation of branches in different flowering periods. This is very important for extending the lychee production period from 2 months to 4 months or even longer, reducing the sales pressure of fresh fruits and improving the benefits of lychee cultivation. “This research is of milestone significance for promoting the basic research and breeding application of several important fruit tree crops of lychee and even the Non-Water Family. It will also have important reference value for the research of tropical crops around the world and the basic research of world agriculture.” Li Jianguo said that this further consolidates my country’s international leadership in lychee research, narrows the gap in research levels between lychee and other bulk fruit trees in citrus, apples, and grapes, and achieves the preliminary goal of leapfrog improvement of the basic biological research level of lychee.