“Genomic and epigenetic bases for polyploidy and hybrid vigor” - Jeff Chen

Friday, March 10, 2017 at 11:15am

Plant Science Building, 404

Jeff Chen
Professor
University of Texas at Austin

D. J. Sibley Centennial Professor in Plant Molecular Genetics

Jeff Chen received his B.S. in Agronomy at Zhejiang Agricultural University, his M.S. in Genetics and Breeding at Nanjing Agricultural University, and his Ph.D. in Genetics at Texas A&M University (dissertation advisor: Gary E. Hart).  Following post-doctoral positions with Ronald Phillips and Howard Rines at University of Minnesota and Craig S. Pikaard at Washington University in St. Louis, he joined the faculty at Texas A&M in 1999, where he was promoted to the rank of Associate Professor with tenure.  In 2005, he joined the faculty of Molecular Cell and Developmental BiologyIntegrative BiologyCenter for Computational Biology and Bioinformatics, and Institute for Cellular and Molecular Biology at The University of Texas at Austin. He is the holder of the D. J. Sibley Centennial Professor in Plant Molecular Genetics.

Jeff Chen has developed an innovative research program to study molecular mechanisms for gene expression changes and evolutionary consequences in hybrids (formed between strains of the same or different species) and allopolyploids (formed between two or more related species) relative to the parents. His research employs Arabidopsis (a weedy plant in the mustard family) and cotton as experimental systems and uses genomic, proteomic, and systems biology approaches, as well as molecular biology and genetic methodologies. Dosage changes and novel interactions between parental genomes and alleles in hybrids and polyploids may induce epigenetic and epigenomic changes, leading to hybrid incompatibilityheterosis in plants, and diseases and cancers in animals. He and his colleagues have found that epigenetic changes in gene expression in plant hybrids and allopolyploids are associated with altered circadian rhythms and hybrid vigorseed sizeenhanced resistance to biotic and abiotic stresses, and fiber cell and trichome development. Moreover, the results have significant implications, not only for the field of genetics and epigenetics, but also for the ultimate success of biotechnological efforts to safely and effectively manipulate gene expression associated with growth vigor in plants and crops that produce food, feed, and biofuels.

 

Event Type

Seminar

Departments

Plant Biology

Tags

plant biology, sips

Website

https://plantbio.cals.cornell.edu/

Contact E-Mail

tln2@cornell.edu

Contact Name

Tara Reed

Contact Phone

607.255.2131

Speaker

Jeff Chen

Speaker Affiliation

University of Texas at Austin

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