Deng Xiuxin's research direction

Cell Engineering and Genetic Improvement of Citrus

Mining citrus germplasm resources

The formation and regulation of fruit quality has presided over 7 general projects and 2 key projects of National Natural Science Foundation, as well as nearly 30 scientific research projects of National "973", National "863", Ministry of Agriculture and National Immigration Bureau, as well as international cooperative research.

He applied for invention patent 1 item, approved 2 varieties, and published more than 100 academic papers in academic journals at home and abroad.

Undertaking project: serial number, project name, project source and category of the starting year and ending year. Hosted or participated in 1 National Indoor Preservation Center for Virus-free Fruit Tree Germplasm 2000-2002 National Citrus Breeding Center of Ministry of Agriculture 2002-2003 National Citrus Breeding Center of Ministry of Agriculture 3 Citrus Variety Test Demonstration in Three Gorges Reservoir Area 2000. -In 2003, the National Immigration Bureau was in charge of major projects. 4. Innovation Team of the Ministry of Education (IRT 0548) In 2006-2008, the innovation team of the Ministry of Education was responsible for five key projects, namely, the molecular basis for the formation of red characters in sweet orange pulp 30830078 2009-20 12. Six innovative group projects of germplasm resources research and genetic improvement of horticultural crops 309210022012014: Study on the model cultivation and storage technology of Guanzhou No.7 citrus nyhyzx07-023 2007-20 10 The Ministry of Agriculture specializes in the key processing technology and the introduction of improved varieties of Guanzhou No.8 citrus. 2007-20 10 948 Special Key Rolling Project of Citrus Industrial Technology System Held 9- Chief Citrus Expert and Postdoctoral Scientist CARS-27 2007- Held by Ministry of Agriculture/Ministry of Finance 10, Formation Mechanism and Regulation of Fruit Quality of Important Horticultural Plants 20100600 201KLOC. Protein omics analysis of chloroplasts in (20 10) sweet orange fruit. Jiexp robot doi: 10. 1093/jxb/err 140

Chai Lijun, Ge,,. CgSL2 is an S-RNase-like gene in' Zigui Shatian pomelo', which is related to ovary senescence. Molecular Biology Report, (2011) 38:1–8

Micrornas were found in sweet orange red meat mutant and its wild type and compared and analyzed. BMC Genomics 1 1: 246

4. Biswas Mark, Mr. Bai, Cheng Yongjun, Deng XX. (20 10) Genetic Similarity of Citrus and Its Related Species Based on Retrotransposon. Genetic Resources Crops Ev 57: 963-972

Qing Xu, Yu Keqing, Zhu Ade, Ye Jilin, Qing Liu, Zhang Jianchang and Deng XX (2009) compared the transcript spectrum, revealing a new insight into the molecular process of regulating lycopene accumulation in the red meat mutant of Citrus sinensis. BMC Gene Company, 10:540

(2009) Comparison of Lycopene Accumulation Mutants protein omics revealed the important role of oxidative stress in carotenoid synthesis in sweet orange. Protein omics, 9: 5455-5470.

(2009) Functional Analysis of PSY Gene in Hong Kong Kumquat (English) Zhang Jianchang, Tao ng, Qing Xu, Zhou Wenjun, Cao Haibo, Xu Jun, Deng XX. Plant cell representative 28: 1737- 1746

(2009) Liu Qing, Zhu Ad, Chai Lijun, Zhou Wenjiang, Yu Kaiqiang, Ding Jun, Xu Jun, Deng XX (2009) Transcriptome analysis of spontaneous mutants of sweet orange. J Exp Bot，60:80 1-8 13

(2009) Construction and identification of two citrus BAC libraries and identification of gene clones containing phytoene synthase. Genome, 52:484-489

Liu Qi, Xu Jun, Liu Yongzhi, Zhao Xiaoling, Deng XX, Guo Linlin, Gu Jianqiang. A new abnormal pattern of lycopene accumulation in sweet orange fruit caused by bud mutation. 4161–4171The technology of isolation, culture, fusion and regeneration of citrus protoplasts was established for the first time in China. More than 30 somatic hybrids between citrus and kumquat were obtained, among which the somatic hybrids between citrus and kumquat were the first in the world.

1. The technical system of isolation, culture and regeneration of citrus protoplasts was established for the first time in China, and regenerated plants of Jincheng and other varieties were obtained.

2. The technical system of protoplast fusion and hybrid regeneration of citrus was established, and somatic hybrid plants were obtained from 30 citrus genera and interspecific combinations such as kumquat, wampee and murraya.

3. Combining with conventional breeding methods, more than 200 triploid plants with improved quality were obtained by immature embryo culture, which provided a new way and new material for cultivating seedless citrus, and also provided experimental materials for studying the genetic law of somatic hybrids.