Yangcheng Evening News Reporter Chen Liang, intern Hong Jiaheng, and correspondent Chen Pengchen reported: On January 4, the paper “Two divergKomiks was led by the National Key Positioning Laboratory, and jointly with the Guangdong Academy of Agricultural Sciences, the Chinese Academy of Tropical Agricultural Sciences and other domestic and foreign units, jointly completed by Komiks. genome suggest independent domestication events for early and late-maturing cultures” was published in Nature Genetics. Corresponding authors include Researcher Li Jianguo, Professor Xia Komiks and Researcher Chen Houbin. The first authors are Professor Hu Guibing of Huanong, PhD student of Babaylanting, Professor Liu Chengming of Liu, Professor Wu Zhenxian, etc.
“Decode” the litchi genome
Propose the origin and domestication pseudo-animation Cinema said
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 pseudo-chromosome level of the litchi genome and the structural annotation of the genome encoding gene.
The project team proposed the Komiks lychee “one startThe Cinema Source Center, two Cinema Independent Domestic Aggression” hypothesis provides genomic evidence for Yunnan to be the only center of origin of litchi in the world, and helps eliminate the cognition that some foreign scholars believe that litchi 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 Komiks’ understanding of the important economic mechanism of litchi, develop corresponding breeding and cultivation regulation technologies, but also provide important reference for promoting related research on other plants such as longans. “Hua Nong 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, which indicates that lychee scientific research has entered the post-genomic era.
Revealing the flowering regulation mechanism
Improving the benefits of lychee planting
The market of lychee fresh fruits is mainly concentrated from May to July. There is often seasonal oversupply of fruits in production, which seriously affects the economic benefits of lychee planting. There are many varieties of Babaylan, and in addition, the Milky Way is a medium-ripe production area in the middle latitude, and the flowering period is concentrated, leading to similar fruit ripening periods of Komiks, and it is listed in a short period of time. “Cinema Bin, chief scientist of the National Lychee Longan Industry Technology System and researcher at Huanong. According to reports, the paper conducted a systematic study on the litchi flowering regulation mechanism from the genome level, and found that a specific DNA sequence in litchi is missing, which may beAn important factor leading to the formation of lychee in different flowering periods. This is very important for extending the lychee production period from 2 months to 4 months or even longer, reducing seasonal sales pressure on fresh fruits, and improving the benefits of lychee planting. “This research is of milestone significance for promoting the basic research and breeding application of several important fruit tree species of lychee and even the Non-Water Family. It will also have an important reference value for the research on tropical crops around the world and the basic research on world agriculture.” Li Jianguo said that this further consolidates my country’s international leading position in lychee research and reduces other bulks of lychee and citrus, apples, and grapes. The gap in research level in fruit trees has achieved a leap forward in improving the basic biology research level of litchi.