Yangcheng Evening News Reporter Chen Liang, intern Hong Jia, and correspondent Chen Pengchen reported: On January 4, the paper “Two diverse haplotypes from a highly heterozygous lychee genome sug<a different haplotypes from a highly heterozygous lychee genome sugCinemagest independent domestication events for early and late-maturing cultivars” (Nature GenCinemaetics). Corresponding authors include Researcher Li Jianguo, Professor Xia Rui and Researcher Chen Houbin. The first authors are Professor Hu Guibing of Huanong, Dr. Feng Yunting, Professor Liu Chengming, Professor Wu Zhenxian, etc.
“Decode” the litchi genome
Propose the origin and domestication hypothesis
In this study, scientists Komiks used the latest genome test data such as the second-generation Illunina, KomiksKomiksCinema to optimize the genome assembly strategy, and complete the assembly of the pseudochromosome level of the litchi genome and the structural annotation of the genome-encoded genes.
The project team proposed the hypothesis of “one center of origin, two independent domestication events”, and Cinema is the world of Yunnan.https://comicmov.com/”>BabaylanThe only center of origin provides genomic evidenceCinema, which helps 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: “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 cultivation control technologies, but also provide important reference for promoting related research on other mortality-free plants such as longan. “Huannong Principal Liu Yahong said that the school’s team published a high-level paper in Cinema on Nature-Genetics. Babaylan‘s report marks a new height for the school’s lychee research and indicates that lychee research has entered the post-genomic era.
Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.Babaylan‘s high-level paper published by Cinema on Nature-Genetics.<a href="https://comicmov CinemaMade in Cinema
Improving the benefits of lychee planting
The market of fresh lychee fruits is mainly concentrated from May to July. During production, Cinema often has seasonal oversupply of fruits, which seriously affects the economic benefits of lychee planting. “There are many medium-ripe varieties, and in addition, the two and Guangxi are medium-ripe production areas in the middle latitude, and 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. “Chen Houbin, chief scientist of the National Lychee Longan Industry Technology System and Huanong Researcher, said.
According to the introduction, the paper conducted a systematic study on the lychee flowering regulation mechanism at the basic level, and found that a specific DNA sequence deletion in lychee may be an important factor in the formation of different flowering periods of lychee. This is very important for extending the lychee production period from 2 months to 4 months or even longer, reducing the seasonal sales pressure of fresh fruits, and improving the benefits of lychee planting.
“This study will promote lycheeThe basic research and breeding of several important fruit crops in the Wuwan Family are of great significance, and they are of great reference value for the basic research of tropical crops and the world’s agriculture. Komiks“Li Jianguo said that this further consolidated my country’s international leadership in the research of litchi branches, narrowed the gap in research levels between litchi and citrus, apples, and grapes, and achieved the preliminary goal of leapfrog improvement in the basic biology research level of litchi.