Yangcheng Evening News Reporter Chen Liang, intern Hong Jiaxun, and correspondent Chen Pengchen reported: On January 4, the paper “Two diverse haplotypes from aKomiks 1960 witch cloth draw highly heterozy href=”https://comicmov.com/”>Komiks 1960 witch cloth drawgous lychee genoCinema 1950 witch cloth drawme suggest independent domestication events for early and late-maturing cultivars” (Nature Genetics). Corresponding authors include Researcher Li Jianguo, Professor Xia Rui and Researcher Chen Houbin. The first authors are Professor Hu Guibing of Huanong, Professor Wu Zhenxian of Feng Yun, Professor Wu Zhenxian of Feng Yun, etc.
“Komiks 1960 witch cloth draw decoded” Lychee genome
proposes the origin and domestication hypothesis
In this study, scientists use the latest Illunina and otherGenome sequencing data, through optimizing the genome assembly strategy, the assembly of “Fei Zi Xiao” lycheeCinema 1950 witch cloth draw genome pseudochromosome level and the structural annotation of genome encoding genes.
The project team proposed the hypothesis of “one center of origin, two independent domestication events” of lychees. It provided genomic evidence for Yunnan to be the only center of origin of lychees in the world, and helped to eliminate Babaylan 1990 cloth draw, except for some foreign scholars who believe that lychees may also originate from Vietnam.
Babaylan 1990 cloth drawSchool Liu Yaoguang of the Chinese Academy of Sciences said at the results press conference: “The genome is the ‘navigation map’ for the formation of plant traits. Decoding the litchi genome not only can 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 plants of the family of ills such as longan.” Liu Yahong, President of Huanong, said that the high-level thesis published by the school team in Nature-GeneticsBabaylan 1990 cloth The drawing paper marks a new height for the school’s lychee research and indicates that lychee scientific research has entered the post-genomic era.
Cinema 1950 witch cloth draw Revealing the flowering regulation mechanism
Improving the benefits of lychee planting
Fresh lychee fruits are mainly concentrated in May to July, and there is often seasonal oversupply of fruits during production. Cinema 1950 witch cloth draw seriously affects the economic benefits of lychee cultivation. “There are many mature varieties in lychees, and the flowers are in the middle latitude, and the flowering period is concentrated, resulting in the similar ripening period of fruits, and it is concentrated in the short period of time. The fruits are mainly ripening and are listed in the short period of time. ” said Chen Houbin, chief scientist of the National Lychee Longan Industry Technology System and a researcher at Huanong. According to reports, the paper conducted a systematic study on the regulation mechanism of lychee blossom from the genome level, and found that a specific DNA sequence deletion in lychee may be an important factor leading to the formation of lychee in different flowering stages. This is very important for extending the lychee production period from 2 months to 4 months or even longer, reducing seasonal sales pressure and improving the benefits of lychee cultivation.
“This study is of milestone significance for promoting the basic research and breeding application of several important fruit tree crops of lychee and even the 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 1950 witch cloth draw and other bulk fruit trees of citrus, apples, and grapes, and realizes the basic biological lychee 1990 cloth drawThe initial goal of leapfrog improvement in scientific researchBabaylan 1990 cloth drawPreliminary goal of leapfrog improvement.