1. 生姜细胞工程育种 2. 彩叶芋体细胞变异机理及倍性育种 3. 籽用吊瓜新品种选育及育苗技术研究

工作经历：
（1）1997年9月—2001年7月，华中农业大学园艺系果树学专业学习，获农学学士学位；
（2）2001年9月—2006年12月，华中农业大学种质资源与改良国家重点实验室柑橘课题组学习，获农学博士学位；
（3）2006年12月—至今：长江大学园艺园林学院，从事教学与科研工作。
期间：2013.11—2014.05：美国佛罗里达大学Gulf Coast Research and Education Center访问学者；2015.02—2016.02：湖北省兴山县昭君村生态食品有限公司副经理（湖北省第三批博士服务团挂职）

1. Zhang Y S, Gu SJ, Chen J J, Cai X D.Effects of different nutrient solutions on the acclimatization of in vitro Caladium plantlets using a simplified hydroponic system. Sains Malays, 2019, 48:1627-1633.

2. Chen J J, Zhang Y S, Cai X D. Optimization of a rapid propagation system for mass production of high-quality plantlets of Trichosanthes kirilowiicv. ‘Yuelou-2’ via organogenesis [J]. Not Bot Horti Agrobo, 2019, 47(3): 722-728.

3. Cai X D, Fu J, Guo W W. Mitochondrial genome of callus protoplast has a role in mesophyll protoplast regeneration in citrus: evidence from Transgenic GFP somatic homo-fusion. Horticultural Plant Journal, 2017, 3(5):177-182.

4. Cai X D, Deng Z. Thidiazuron promotes callus induction and proliferation in Caladium× Hortulanum Birdsey UF-4609. Propagation of Ornamental Plants, 2016, 16(3): 90-97

5. Cao Z, Sui S Z, Cai X D, Yang Q, Deng Z. Somaclonal variation in ‘Red Flash’ caladium: morphological, cytological and molecular characterization. Plant Cell Tissue Org Cult, 2016. 126:269-279

6. Cai X D, Cao Z, Xu S X, Deng Z. Induction, regeneration and characterization of tetraploids and variants in ‘Tapestry’ caladium. Plant Cell Tiss Org Cult, 2015, 120: 689-700.

7. Cai X D, Wang G Y, Cao W J. In vitro induction and proliferation of callus from immature cotyledons and Embryos of Juglans regia cv. 'Xiangling'. Not Bot Horti Agrobo, 2013, 41: 1-7

8. Xu S X，Cai X D，Tan B，Li D L，Guo W W. Effect of ploidy increase on transgene expression: example from Citrus diploid cybrid and allotetraploid somatic hybrid expressing the EGFP gene. Protoplasma, 2011, 248(3), 531-540

9. Cai X D, Duan Y X, Fu J, Guo W W. Production and molecular characterization of potential seedless cybrid plants between pollen sterile Satsuma mandarin and two seedy Citrus cultivars. Acta Physiol Plant, 2010, 32: 215-221

10. Cai X D, Fu J, Chen C L, Guo W W. Cybrid/hybrid plants regenerated from somatic fusions between male sterile Satsuma mandarin and seedy tangelos. Scientia Horticulturae, 2009, 122: 323- 327

11. Cai X D, Fu J, Deng X X, Guo W W. Production and molecular characterization of potential seedless cybrid plants between pollen sterile Satsuma mandarin and two seedy Citrus cultivars. Plant Cell Tiss Org Cult, 2007, 90: 275-283

12. Cai X D, Liu X, Guo W W. GFP expression as an indicator of somatic hybrids between transgenic Satsuma mandarin and calamondin at embryoid stage. Plant Cell Tiss Org Cult, 2006, 87: 245-253

13. Guo WW, Cai X D, Cheng YJ, Grosser JW, Deng XX. Protoplast technology and citrus improvement. In: Xu ZH, Li JY, Xue YB, Yang WC (eds) Biotechnology and Sustainable Agriculture 2006 and Beyond – Proc 11th IAPTC&B Congress. Springe, 2007, pp 461-464

14. Guo W W, Cai X D, Grosser J W. Somatic Cell cybrids and hybrids in plant improvement. In: Daniell H, Chase C D (eds) Molecular Biology and Biotechnology of Plant Organelles. Springer, 2004, pp 635-659