서울대학교 생물정보연구소와 생물정보학 협동과정 공동 주최로 특별 세미나를 아래와 같이 열고자 하오니,　많은 참여 바랍니다.

일시　: 2016년　10월　05일 수요일 오전　11시

연사　:　윤환수　(성균관대학교 생명과학과)

장소　:　서울대학교　25동　411호

Title:　Origins of Algae and Origins of Plastids

Abstract:　Organellogenesis and its associated endosymbiotic gene transfer (EGT) are driving forces of eukaryote genome evolution. However, little is known about early events in plastid origin because the primary plastid endosymbiosis in Plantae (red, green, and glaucophyte algae and plants) occurred >1 billion years ago. The photosynthetic filose amoeba Paulinella provides a unique model for understanding EGT, organelle evolution, and the impact of plastid acquisition on lineage diversification because of the relatively recent origin of its plastid. Multigene phylogenetic analysis and genome comparisons demonstrate that Paulinella chromatophora acquired its plastid via cyanobacterial primary endosymbiosis about 90-140 million years ago. Using single cell genomics and next-generation sequencing methods, we sequenced plastid and nuclear genome from the photosynthetic Paulinella microporus FK01, which identified as a new photosynthetic species. P. microporus diverged from P. chromatophora with regard both to morphology and differential gene loss in the plastid genome. Detail feature of plastid genomes and EGT genes and evolutionary history of Paulinella will be discussed.

Education:

1994 – 1999 Ph.D. Biology, Chungnam National University, Korea.

1992 – 1994 M.S. Biology, Chungnam National University, Korea.

1988 – 1992 B.S. Biology, Chungnam National University, Korea.

Professional Positions and Academic Experiences:

2011 – Present Assistant, Associate Professor, Sungkyunkwan University

2007 – 2011 Principle Investigator (Senior Research Scientist): Bigelow Laboratory for Ocean Sciences.

2004 – 2007 Senior Scientist: University of Iowa.

2000 – 2004 Post Doctoral Fellow: University of Iowa.

2012 – 2014 Phycologia, Associate Editor

2012 – 2013 Vice President of the International Society of Protistologists

Selected Publications (out of 90 papers)

JunMo Lee, Chung Hyun Cho, Seung In Park, Ji Won Choi, Hyun Suk Song, John A. West, Debashish Bhattacharya, and Hwan Su Yoon. 2016. Parallel evolution of highly conserved plastid genome architecture in red seaweeds and seed plants. BMC Biology. 14: 75. Doi: 10.1186/s12915-016-0299-5.

JunMo Lee, Kyeong Mi Kim, Eun Chan Yang, Kathy Ann Miller, Sung Min Boo, Debashish Bhattacharya, and Hwan Su Yoon. 2016. Reconstructing the complex evolutionary history of mobile plasmids in red algal genomes. Scientific Reports. 6: 23744.

Eun Chan Yang, Sung Min Boo, Debashish Bhattacharya, Gary Saunders, Andrew H. Knoll, Suzanne Fredericq, Louis Graf, and Hwan Su Yoon. 2016. Divergence time estimates and evolution of major lineages in the florideophyte red algae. Scientific Reports. 6: 21361.

Eun Chan Yang, Kyeong Mi Kim, Su Yeon Kim, JunMo Lee, Ga Hun Boo, Jung-Hyun Lee, Wendy A. Nelson, Gangman Yi, William Schmidt, Suzanne L. Fredericq, Sung Min Boo, Debashish Bhattacharya, and Hwan Su Yoon. 2015. Highly conserved mtDNA among multicellular red algae of the Florideophyceae. Genome Biology and Evolution. 7(8): 2394-2406

Eun Chan Yang, Bo-Hye Nam, Seung-Jae Noh, Young-Ok Kim, Dong-Gyun Kim, Young Ju Lee, Jun-Hyung Park, Jae Hoon Noh, Hwan Su Yoon*. 2015. Complete mitochondrial genome of Pacific abalone (Haliotis discus hannai) from Korea. Mitochondrial DNA. 26(6): 917-918, DOI: 10.3109/19401736.2013.863289.

서울대학교 생물정보연구소

생물정보학 협동과정 공동주최