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Abstract Detail


MSA - Systematics/Evolution

Yun, Hye Young [1], Hong, Soon Gyu [2], Min, Ji Young [3], Lee, Kyung Joon [4].

Genetic diversity of Asian populations of Gymnosporangium species by AFLP analyses.

The level of genetic variation in populations of three Asian Gymnosporangium species, G. asiaticum, G. japonicum and G. yamadae, on Juniperus chinensis from China and Korea was estimated using AFLP (amplified fragment length polymorphism) fingerprint analysis. UPGMA dendrogram showed a significant correlation between AFLP patterns and geography, and each species formed a distinct clade. To study correlation among phenotypic characteristics and genetic variation further, ecological and phenotypic characteristics of seventeen collections of G. asiaticum from different areas in China and Korea were analyzed. As a result, phenotypic characteristics, including telial host, position of telia on host, telial shape and teliospore length, were not correlated with the UPGMA grouping based on the AFLP fingerprint. However, AFLP patterns did show significant correlation with geography. From both of the studies, it is concluded that geographical distribution would have an important role in genetic differentiation of Gymnosporangium in eastern Asia.


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1 - United States Department of Agriculture, Systematic Mycology and Microbiology Lab., Agricultural Research Service, R304, B011A, 10300 Baltimore Ave. , Beltsville, MD, 20705, U.S.A.
2 - Korea Polar Research Institute, KORDI, Polar BioCenter, 7-50 Songdo-dong, Yeonsu-gu , Incheon, 406-840, Republic of Korea
3 - Rural Development Administration, The National Institute of Crop Science, 151 Seodun-dong, Gwonseon-gu, Suwon, 441, Republic of Korea
4 - Seoul National University, Department of Forest Science, College of Agriculture and Life Sciences, 56-1 Shilim-dong, Kwanak-gu, Seoul , 151-921, Republic of Korea

Keywords:
cedar rust
Cupressaceae
Pucciniomycetes
Pucciniales.

Presentation Type: Poster:Posters for Topics
Session: P2
Location: Event Tent/Cliff Lodge
Date: Tuesday, July 28th, 2009
Time: 5:30 PM
Number: P2SE054
Abstract ID:944


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