Abstract Detail

Population Genetics

Pan, Ching- Wen [1], Hsu, Tsai-Wen [2], Chiang, Yu-Chung [3].

Population differentiation between two populations of Juniperus formosana (Cupressaceae) distinctive distributed on high and low altitude in Taiwan using multilocus analyses.

In Taiwan, Juniperus formosana Hayata distributed on ecologically distinct habitats in altitude, including huge populations grown over 2500 meters altitudes of the Central Mountain region and small populations grown on 300 meters altitudes of the Qingshui Cliff. The morphology of J. formosana is similar among populations in Taiwan. Isolated populations may induce local adaptation and intraspecific differentiation by environmental selection. In this study, we contributed two transcriptomes from high and low altitude populations of J. formosana. Compared two transcriptomes, we obtain 44 unigenes that the expression levels over 50 times in high altitude population than in low altitude population and 142 unigenes that the expression levels over 50 times in low altitude population than high altitude population. In addition, we surveyed sequence variation, including 3 cpDNA spacers and more than 15 nuclear genes, and genotyping using polymorphic microsatellite loci among 60 individuals sampled from high and low altitude populations. The topological demography is shown obvious divergence between high and low altitudes populations. A distinct pattern also supported by clustering with STRUCTURE analyses and principal coordinates analysis (PCoA). In conclude, due to adapt environmental difference, J. formosana diverge into different lineages caused by adaptive radiation.

1 - National Sun Yat-Sen University, Department Of Biological Sciences, No. 70, Lienhai Road , Kaohsiung, 80424, Taiwan
2 - Taiwan Endemic Species Research Institute, 1, Ming-shen East Road, Chichi, Nantou County, 552, Taiwan
3 - National Sun Yat-Sen University, Department Of Biological Sciences, No. 70, Lienhai Road,, Kaohsiung, Taiwan, N/A, 80424, Taiwan

Keywords:
Population differentiation
Juniperus formosana
ecological adaptation.

Presentation Type: Poster
Session: P, Population Genetics Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PPG003
Abstract ID:266
Candidate for Awards:None