Seminar on Jumping Genes by LK

1
Siri Seminar Genomik Tumbuhan Pusat Pengajian Sains Sekitaran dan Sumber Alam, Fakulti Sains & Teknologi, Universiti Kebangsaan Malaysia Date: 15 Nov. 2011 Venue: Seminar Room G143, FST 1000-1030 Refreshments 1030-1200 Jumping Genes Jumble the Genome -Dr. Lakshminarasimhan Krishnaswamy Jumping Genes Jumble the Genome Dr. Lakshminarasimhan Krishnaswamy, School of Science, Monash University Sunway campus, Malaysia Email: [email protected] Abstract Transposable elements (also known as ‘jumping genes’) are mobile genetic elements that can move from one locus in the genome to another. It was Barbara McClintock who discovered transposable elements when she was studying a particular variegation pattern of pigmentation in maize kernels. Initially the phenomenon of transposition was considered to be an anomalous feature unique to maize. In the years that followed we have learnt that transposons are found in all species, and in fact, transposable elements contribute to a large fraction of the genome in most eukaryotes. In addition to moving from one locus to another in the genome, transposable elements can also cause a wide variety of genome rearrangements. In this seminar we will discuss the different kinds of rearrangements, the mechanism of rearrangements, the implications of such rearrangements, and the utility of such rearrangements in chromosome engineering. Background biography of speaker: Lakshminarasimhan Krishnaswamy obtained his BSc in Botany from The American College, Madurai, India. He joined the National Centre for Biological Sciences (NCBS), Bangalore, India, for his MSc and studied differential expression of genes in the brain of epileptic rats. However he realized he wasn’t comfortable doing research using animals and decided to move back to plants. He pursued his Ph.D. under the guidance of Dr. Thomas Peterson at Iowa State University, Ames, Iowa, USA, where he studied transposon mediated genome rearrangements in Arabidopsis. Then he moved to University of Missouri, Columbia, Missouri, USA, for a postdoctoral stint in Dr. James Birchler’s lab. Here he was involved in a project generating minichromosomes in maize. He has recently joined the School of Science, Monash University Sunway campus, where he enjoys teaching and is aspiring to establish a research lab to develop transposon based tools for genome engineering. Convenor: Prof. Dr. Wickneswari Ratnam, PPSSSA, FST

Transcript of Seminar on Jumping Genes by LK

Page 1: Seminar on Jumping Genes by LK

Siri Seminar Genomik Tumbuhan

Pusat Pengajian Sains Sekitaran dan Sumber Alam, Fakulti Sains & Teknologi, Universiti

Kebangsaan Malaysia

Date: 15 Nov. 2011

Venue: Seminar Room G143, FST

1000-1030 Refreshments 1030-1200 Jumping Genes Jumble the Genome

-Dr. Lakshminarasimhan Krishnaswamy

Jumping Genes Jumble the Genome 

Dr. Lakshminarasimhan Krishnaswamy, 

School of Science, 

Monash University Sunway campus, Malaysia Email: [email protected] 

 

Abstract

Transposable  elements  (also  known  as  ‘jumping genes’) are mobile genetic elements that can move from one  locus  in  the  genome  to  another.  It was Barbara McClintock  who  discovered  transposable elements  when  she  was  studying  a  particular variegation  pattern  of  pigmentation  in  maize kernels.  Initially  the phenomenon of  transposition was considered to be an anomalous feature unique to maize. In the years that followed we have learnt that  transposons  are  found  in  all  species,  and  in fact,  transposable  elements  contribute  to  a  large fraction of the genome in most eukaryotes. 

In  addition  to  moving  from  one  locus  to another  in  the  genome,  transposable elements  can  also  cause  a  wide  variety  of genome rearrangements.  In this seminar we will  discuss  the  different  kinds  of rearrangements,  the  mechanism  of rearrangements,  the  implications  of  such rearrangements,  and  the  utility  of  such rearrangements  in  chromosome engineering.     

Background biography of speaker:

 

 

 

Lakshminarasimhan  Krishnaswamy  obtained his BSc  in Botany  from The American College, Madurai,  India. He  joined  the National Centre for  Biological  Sciences  (NCBS),  Bangalore, India,  for  his  MSc  and  studied  differential expression  of  genes  in  the  brain  of  epileptic rats.  However  he  realized  he  wasn’t comfortable doing  research using animals and decided to move back to plants. He pursued his Ph.D.  under  the  guidance  of  Dr.  Thomas Peterson at Iowa State University, Ames, Iowa, USA,  where  he  studied  transposon mediated genome  rearrangements  in  Arabidopsis.  Then he moved to University of Missouri, Columbia, Missouri,  USA,  for  a  postdoctoral  stint  in  Dr. James Birchler’s lab. Here he was involved in a project generating minichromosomes in maize. He  has  recently  joined  the  School  of  Science, Monash University Sunway campus, where he enjoys  teaching  and  is  aspiring  to  establish  a research lab to develop transposon based tools for genome engineering.   

 Convenor: Prof. Dr. Wickneswari Ratnam, PPSSSA, FST