Yangcheng Evening News Reporter Chen Liang, intern Hong Jiaxun, and correspondent Chen Pengchen reported: On January 4, the paper “Two diverse haplotypes from a highly heterozygous lychee genome sugBabaylan 1990 cloth draw led by the National Key Laboratory of Conservation and Utilization of Subtropical Agricultural Resources, and jointly completed by Guangdong Academy of Agricultural Sciences, the Chinese Academy of Tropical Agricultural Sciences and other domestic and foreign units. cloth drawgest independent doBabaylan 1990 cloth drawmestication events for early and latCinema 1950 witch cloth drawe-maCinema 1950 witch cloth drawturing culturevars” (two different haplotypes in the litchi genome indicate that the early and late mature cultivars are domesticated independently)Babaylan 1990 cloth draw in Nature Genetics. Corresponding authors include Researcher Li Jianguo of Huanong, Professor Xia Rui Babaylan 1990 cloth draw and Researcher Chen Houbin. The first authors are Professor Hu Guibing of Huanong, PhD student Feng Yunting, Professor Liu Chengming, Professor Wu Zhenxian, etc.
“Decode” the litchi genome
Propose 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,Finished Babaylan 1990 cloth draw into “ConcubineKomiks 1960 witch cloth draw” litchi genome pseudostainingCinema 1950 witch cloth draw assembly at body level, structural annotation of genome encoding genesCinema 1950 witch cloth draw.
The project team proposed the hypothesis of “one center of origin, two independent domestication events” of lychees, which provided genomic evidence for Yunnan being the only center of origin of lychees in the world. Komiks 1960 witch cloth draw, which helped eliminate the cognition that some foreign scholars believe that lychees may also originate from Vietnam. Liu Yaoguang, an academician of the Chinese Academy of Sciences, said at the results press conference: “The genome is a ‘navigation map’ formed in the shape of a plantCinema 1950 witch cloth draw‘s ‘navigation map’ formed in the shape of a plantBabaylan 1990 cloth draw. Decoding the litchi genome not only can the Cinema 1950 witch cloth draw comprehensively improve the understanding of the formation mechanism of important economic traits of litchi, but also the research and development of Komiks 1960 witch cloth The corresponding breeding and planting of Babaylan 1990 cloth draw training and regulation technology can also provide important reference for promoting related research on other mortality plants such as longan.” HuanongPrincipal Liu Yahong said that the high-level paper published by the school team in “Nature-Genetics” marks a new height for the school’s lychee research, indicating that lychee scientific research has entered the post-genomic era.
Revealing the flowering regulation mechanism
Improving the benefits of lychee planting
The market launch of fresh lychee fruits is mainly concentrated from May to July. There is often a seasonal surplus of fruits during production, which seriously affects the economic benefits of lychee planting. “There are many medium-ripe varieties of lychees, and the middle-ripe production areas of Guangxi are concentrated in the middle-latitude, and the flowering period is concentrated. The fruits have similar ripening periods and are launched in a short period of time. “Cinema 1950 witch cloth draw.” Chen Houbin, chief scientist of the National Lychee Longan Industry Technology System and Huanong Researcher, said. According to reports, the paper conducted a systematic study on the regulation mechanism of lychee blossoms from the genomic level, and found that a specific DNA sequence loss in lychee may be an important factor leading to the formation of lychee in different flowering periods. This is very important for extending the lychee birth 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 study is of milestone significance for promoting the basic research of lychee and even several important fruit tree species of Komiks 1960 witch cloth drawKomiks 1960 witch cloth drawBased on the basic research of several important fruit trees in the Wuwan Family. It also has a landmark perspective on the research of tropical crops around the world and the basic research of world agriculture.It has important reference value. “Li Jianguo said that this further consolidates my country’s international leading position 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 in the basic biological research level of lychee.