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Forests 2015, 6(4), 1094-1106; doi:10.3390/f6041094

Genetic Diversity and Population Structure of Toona Ciliata Roem. Based on Sequence-Related Amplified Polymorphism (SRAP) Markers

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College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
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College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong 510642, China
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State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangzhou, Guangdong 510642, China
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Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou, Guangdong 510642, China
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Author to whom correspondence should be addressed.
Academic Editor: Eric J. Jokela
Received: 17 December 2014 / Revised: 13 March 2015 / Accepted: 1 April 2015 / Published: 8 April 2015
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Abstract

Sequence-related amplified polymorphism (SRAP) markers were used to investigate the genetic diversity among 30 populations of Toona ciliata Roem. sampled from the species’ distribution area in China. To analyze the polymorphism in the SRAP profiles, 1505 primer pairs were screened and 24 selected. A total of 656 SRAP bands ranging from 100 to 1500 bp were acquired, of these 505 bands (77%) were polymorphic. The polymorphism information content (PIC) values ranged from 0.32 to 0.45, with an average of 0.41. An analysis of molecular variance (AMOVA) indicated that the most significant variation was attributable to differences among the populations and that variation within the populations was small. STRUCTURE analysis divided the 30 populations into two parts. The unweighted pair group method of arithmetic averages (UPGMA) clustering and principal coordinates analysis (PCoA) showed that the 30 populations could be classified into four types. The results demonstrate a clear geographical trend for T. ciliata in China and provide a theoretical basis for future breeding and conservation strategy of T. ciliata. View Full-Text
Keywords: Toona ciliata Roem.; SRAP markers; PIC; genetic diversity Toona ciliata Roem.; SRAP markers; PIC; genetic diversity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, P.; Zhan, X.; Que, Q.; Qu, W.; Liu, M.; Ouyang, K.; Li, J.; Deng, X.; Zhang, J.; Liao, B.; Pian, R.; Chen, X. Genetic Diversity and Population Structure of Toona Ciliata Roem. Based on Sequence-Related Amplified Polymorphism (SRAP) Markers. Forests 2015, 6, 1094-1106.

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