scholarly journals Genetic diversity and colony structure of Tapinoma melanocephalum on the islands and mainland of South China

2018 ◽  
Vol 8 (11) ◽  
pp. 5427-5440 ◽  
Author(s):  
Chunyan Zheng ◽  
Fan Yang ◽  
Ling Zeng ◽  
Edward L. Vargo ◽  
Yijuan Xu
Keyword(s):  
Genetic Diversity ◽  
South China ◽  
Colony Structure ◽  
Tapinoma Melanocephalum

scholarly journals Genetic Diversity and Population Genetic Structure of Cinnamomum camphora in South China Revealed by EST-SSR Markers

Forests ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 1019 ◽  
Author(s):  
Zhong ◽  
Yang ◽  
Li ◽  
Zhang ◽  
Liu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
South China ◽  
Expressed Sequence Tag ◽  
Gene Diversity ◽  
Jiangxi Province ◽  
Group Method ◽  
Cinnamomum Camphora ◽  
Wild Populations ◽  
Arithmetic Means

Cinnamomum camphora is a valuable broad-leaf tree indigenous to South China and East Asia and has been widely cultivated and utilized by humans since ancient times. However, owing to its overutilization for essential oil extraction, the Transplanting Big Trees into Cities Program, and over deforestation to make furniture, its wild populations have been detrimentally affected and are declining rapidly. In the present study, the genetic diversity and population structure of 180 trees sampled from 41 populations in South China were investigated with 22 expressed sequence tag-simple sequence repeat (EST-SSR) markers. In total, 61 alleles were harbored across 180 individuals, and medium genetic diversity level was inferred from the observed heterozygosity (Ho), expected heterozygosity (He), and Nei’ gene diversity (GD), which were 0.45, 0.44, and 0.44, respectively. Among the 41 wild populations, C. camphora had an average of 44 alleles, 2.02 effective alleles, and He ranging from 0.30 (SC) to 0.61 (HK). Analysis of molecular variance (AMOVA) showed that 17% of the variation among populations and the average pairwise genetic differentiation coefficient (FST) between populations was 0.162, indicating relatively low genetic population differentiations. Structure analysis suggested two groups for the 180 individuals, which was consistent with the principal coordinate analysis (PCoA) and unweighted pair-group method with arithmetic means (UPGMA). Populations grouped to cluster I were nearly all distributed in Jiangxi Province (except population XS in Zhejiang Province), and cluster II mainly comprised populations from other regions, indicating a significant geographical distribution. Moreover, the Mantel test showed that this geographical distance was significantly correlated with genetic distance. The findings of this research will assist in future C. camphora conservation management and breeding programs.

Genetic Diversity and Geographical Differentiation of Desmodium triflorum (L.) DC. in South China Revealed by AFLP Markers

2010 ◽  
Vol 53 (2) ◽  
pp. 165-171 ◽  
Author(s):  
Mao-feng Yue ◽  
Ren-chao Zhou ◽  
Ye-lin Huang ◽  
Guo-rong Xin ◽  
Su-hua Shi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
South China ◽  
Aflp Markers ◽  
Geographical Differentiation

scholarly journals Genetic Diversity and Abundance of Flavobacterial Proteorhodopsin in China Seas

2008 ◽  
Vol 75 (2) ◽  
pp. 529-533 ◽  
Author(s):  
Meiru Zhao ◽  
Feng Chen ◽  
Nianzhi Jiao
Keyword(s):  
Genetic Diversity ◽  
South China ◽  
Metagenomic Data ◽  
China Seas ◽  
Geographic Pattern ◽  
Pr Genes

ABSTRACT Proteorhodopsin (PR) genes related to Flavobacteria were found to be highly diverse in the East and South China seas and displayed a distinct geographic pattern, which appeared to reflect cold versus warm adaptation when Global Oceanic Sampling database metagenomic data were included. Flavobacterial PR genes were more abundant offshore than nearshore, implying that inheritance of the PR gene could be important for Flavobacteria living in the oligotrophic environment.

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