Abstract Detail

Recent Topics Posters

Lee, Ji-Yeon [1], Choi, In-Su [2], Choi, Byoung-Hee [2].

Phylogeography and population genetics of Lathyrus japonicus.

The halophyte perennial herbal plant Lathyrus japonicus (Leguminosae) is widely distributed along seashores in the Northern Hemisphere. In this study, we mainly focused on historical events for seed dispersal within Korea and Japan, as influenced by land configuration and changes in sea currents during last glacial maximum. To elucidate its genetic diversity and phylogeographic structure, we investigated variations in the sequences of two plastid DNA regions (psbA-trnH and atpI-atpH) for 171 individuals from 17 populations on the Korean Peninsula and Tsushima Island. Four plastid DNA haplotypes were detected, with Haplotype A being the most common and dominant among all tested populations. Haplotype diversity was higher in southern Korea than in any other location. In our combined analysis with previous Japanese data, we determined that the dominant haplotype varied among different seashores of the East Sea and the Pacific Sea sides of Japan. The geographical distribution patterns of plastid DNA haplotypes found in our research demonstrate that seeds of L. japonicus have been dispersed from the South Sea to the East Sea by ocean currents.

1 - National Institute of Biological Resources, Incheon, 404-708, South Korea
2 - Inha University, Biological Science, Incheon, 402-751, South Korea

Keywords:
Phylogeography
population genetics
Sea current
Lathyrus japonicus
Halophyte
Leguminosae.

Presentation Type: Recent Topics Poster
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PRT029
Abstract ID:1813
Candidate for Awards:None