Yangcheng Evening News Reporter Chen Liang, Shi Komiks Intern Hong Jiaheng, correspondent Chen Pengchen reported: On January 4, the paper “Two diverse haplotypes from a highly heterozygous lychee genome suggest independent domestication events for early and late-maturing cultures” was jointly completed by the National Key Laboratory of Conservation and Utilization of Subtropical Agricultural Bioresources, and jointly with Guangdong Academy of Agricultural Sciences, the Chinese Academy of Tropical Agricultural Sciences and other domestic and foreign units, “Two diverse haplotypes from a highly heterozygous lychee genome suggest independent domestication events for early and late-maturing cultures” was jointly completed by the National Key Laboratory of Conservation and Utilization of Subtropical Agricultural Resources, and jointly with the Guangdong Academy of Agricultural Sciences, the Chinese Academy of Tropical Agricultural Sciences and other domestic and foreign units. Cinemasame haplotype indicates that early and late mature cultivars are domesticated independently) published in Nature GeneBabaylantics). The authors of the newsletter include Researcher Li Jianguo, Professor Xia, Professor Rui and Chen Houbinyan Chen, and Researcher Chen Houbinyan. The first authors are Professor Hu Guibing of Huanong, PhD student Feng Yunting, Professor Liu Chengming, Professor Wu Zhenxian, etc.
“Decode” the litchi gene, Komiks group, proposed the origin domestication hypothesis
Komiks In this study, Babaylan scientists used the latest genomes such as Illunina, such as the second generation of Illunina, to optimize the baseline.=”https://comicmov.com/”>BabaylanMetagenesis assembly strategyKomiks, and complete the assembly of pseudochromosome levels of the litchi genome and the structural annotation of the genome-encoded gene. The project team proposed the hypothesis of “one center of origin, two independent domestication events” of lychee, providing genomic evidence for the only center of origin of lychee, which helped to eliminate the cognition that some foreign scholars believe that lychee may also originate in Vietnam. Liu Yaoguang, an academician of the Chinese Academy of Sciences, said at the results press conference: “The 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, and develop corresponding breeding and cultivation regulation technologies, but also provide important reference for promoting related research on other plants of the family of no family, such as longan.” Liu Yahong, president of Huanong, said that the high-level paper published by the school’s team in Nature-Genetics marks a new height for the school’s litchi research, which indicates that litchi scientific research has entered the post-genomic era.
Revealing the flowering regulation mechanism
Improving the benefits of lychee planting
Fresh lychee fruits are mainly concentrated in May to July, and seasonal overflow of fruits often occur during production, which seriously affects the economic benefits of lychee planting. “There are many medium-ripe varieties of lychees, and the two and Guangxi are medium-ripe production areas in the middle latitude. The flowering period is concentrated, resulting in the similar ripening periods of fruits and are concentrated on the market in a short period of time.” The chief science and technology system of the National Lychee Longan Production Cinema Industry Technology SystemBabaylan scientist and researcher at Huanong said. 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 deletion in litchi may be an important factor in the formation of different flowering periods of litchi. This is very important for extending the litchi yield period from 2 months to 4 months or even longer, reducing the seasonal sales pressure of fresh fruits, and improving the benefits of litchi planting. “This study is a basic study for promoting the basic research of several important fruit crops of litchi and even Babaylan and the Babaylan family. href=”https://comicmov.com/”>CinemaBreeding application and other landmarks, and 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 in the basic biology research level of lychee.