Pollen-mediated gene flow promotes low nuclear genetic differentiation among populations of Cycas debaoensis (Cycadaceae)
Gong, Yi-Qing; Gong, Xun
2016-10-01
Source PublicationTREE GENETICS & GENOMES
Volume12Issue:5Pages:93
AbstractCycas debaoensis is a critically endangered cycad species endemic to China. This species is found on two kinds of habitats according to the edaphic differences, sand and karst. A previous chloroplast DNA (cpDNA) study indicated that C. debaoensis had low genetic variation within populations and high genetic differentiation among populations. Because maternally inherited cpDNA does not fully characterize genetic structure of the species, we screened seven low-copy nuclear genes and 17 nuclear microsatellite loci to detect the nuclear genetic diversity, differentiation, and the population structure of C. debaoensis. The nuclear genes revealed higher level of genetic diversity. There were both the same and region-specific haplotypes or alleles between the karst and sand regions. Nuclear gene flow among all the populations was much greater than that of cpDNA, which indicated that pollen-mediated gene flow was much greater than seed-mediated gene flow. This promoted low nuclear genetic differentiation among populations of C. debaoensis. The study suggests that both genetic and anthropogenic disturbances have resulted in the critically endangered status of C. debaoensis.
KeywordCycas Debaoensis Genetic Differentiation Population Structure Gene Flow Conservation
DOI10.1007/s11295-016-1051-6
Indexed BySCI
Language英语
WOS IDWOS:000385143300011
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/33540
Collection中国科学院东亚植物多样性与生物地理学重点实验室
AffiliationChinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Peoples R China
Recommended Citation
GB/T 7714
Gong, Yi-Qing,Gong, Xun. Pollen-mediated gene flow promotes low nuclear genetic differentiation among populations of Cycas debaoensis (Cycadaceae)[J]. TREE GENETICS & GENOMES,2016,12(5):93.
APA Gong, Yi-Qing,&Gong, Xun.(2016).Pollen-mediated gene flow promotes low nuclear genetic differentiation among populations of Cycas debaoensis (Cycadaceae).TREE GENETICS & GENOMES,12(5),93.
MLA Gong, Yi-Qing,et al."Pollen-mediated gene flow promotes low nuclear genetic differentiation among populations of Cycas debaoensis (Cycadaceae)".TREE GENETICS & GENOMES 12.5(2016):93.
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