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Ecological Factors Generally Not Altitude Related Played Main Roles in Driving Potential Adaptive Evolution at Elevational Range Margin Populations of Taiwan Incense Cedar (Calocedrus formosana)
- Source :
- Frontiers in Genetics, Vol 11 (2020)
- Publication Year :
- 2020
- Publisher :
- Frontiers Media SA, 2020.
-
Abstract
- Population diversification can be shaped by a combination of environmental factors as well as geographic isolation interacting with gene flow. We surveyed genetic variation of 243 samples from 12 populations of Calocedrus formosana using amplified fragment length polymorphism (AFLP) and scored a total of 437 AFLP fragments using 11 selective amplification primer pairs. The AFLP variation was used to assess the role of gene flow on the pattern of genetic diversity and to test environments in driving population adaptive evolution. This study found the relatively lower level of genetic diversity and the higher level of population differentiation in C. formosana compared with those estimated in previous studies of conifers including Cunninghamia konishii, Keteleeria davidiana var. formosana, and Taiwania cryptomerioides occurring in Taiwan. BAYESCAN detected 26 FST outlier loci that were found to be associated strongly with various environmental variables using multiple univariate logistic regression, latent factor mixed model, and Bayesian logistic regression. We found several environmentally dependent adaptive loci with high frequencies in low- or high-elevation populations, suggesting their involvement in local adaptation. Ecological factors, including relative humidity and sunshine hours, that are generally not altitude related could have been the most important selective drivers for population divergent evolution in C. formosana. The present study provides fundamental information in relation to adaptive evolution and can be useful for assisted migration program of C. formosana in the future conservation of this species.
- Subjects :
- 0301 basic medicine
AFLP
lcsh:QH426-470
Keteleeria davidiana
Population
Biology
Gene flow
03 medical and health sciences
0302 clinical medicine
elevational range margin populations
Genetic variation
Genetics
education
Genetics (clinical)
Local adaptation
education.field_of_study
Genetic diversity
adaptive evolution
Ecology
Calocedrus formosana
biology.organism_classification
Divergent evolution
lcsh:Genetics
030104 developmental biology
030220 oncology & carcinogenesis
Molecular Medicine
environment
allele frequency
Subjects
Details
- ISSN :
- 16648021
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Frontiers in Genetics
- Accession number :
- edsair.doi.dedup.....fd9a4b7b5283b5b471157bb2874fbc26