Evidence of Low Chloroplast Genetic Diversity in Two Carpinus Species in the Northern Balkans

Genetic diversity and differentiation in two Carpinus species (C. betulus and C. orientalis) occurring in Romania was investigated by using three chloroplast Simple Sequence Repeat markers (cpSSRs). A total of 96 and 32 individuals were sampled in eighteen C. betulus and six C. orientalis population...

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Bibliographic Details
Published in:Notulae botanicae Horti agrobotanici Cluj-Napoca 2017-01, Vol.45 (1), p.316-322
Main Authors: CĂRĂBUŞ, Mihaela Cristina, CURTU, Alexandru Lucian, POSTOLACHE, Dragoș, CIOCÎRLAN, Elena, ŞOFLETEA, Neculae
Format: Article
Language:English
Subjects:
Biodiversity
Chloroplast DNA
Chloroplasts
Deoxyribonucleic acid
Differentiation
DNA
Evolution
Gene flow
Genetic diversity
Genetic resources
Geographical distribution
Haplotypes
Markers
Population genetics
Populations
Seeds
Species diversity
Wildlife conservation
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Summary:Genetic diversity and differentiation in two Carpinus species (C. betulus and C. orientalis) occurring in Romania was investigated by using three chloroplast Simple Sequence Repeat markers (cpSSRs). A total of 96 and 32 individuals were sampled in eighteen C. betulus and six C. orientalis populations, respectively. A total of four chloroplast haplotypes were observed. Two haplotypes were specific for C. betulus and two for C. orientalis. Most of C. betulus populations were fixed for the predominant haplotype (H1), which was observed in 82% of the individuals. All C. orientalis populations were fixed for one haplotype or the other. Populations with haplotype (H3) are spread in southern Romania and the haplotype (H4) was observed at the northern limit of C. orientalis natural distribution range. Genetic differentiation among populations was moderate in C. betulus (GST = 0.422), compared to the high value observed in C. orientalis (GST = 1.000), which can be explained by the occurrence of a distinct haplotype in the peripheral population. RST values for both species suggest low levels of recurrent gene flow through seeds among populations. Our data on geographic distribution of chloroplast DNA haplotypes may be useful for the identification and conservation of distinct genetic resources of the two Carpinus species.
ISSN:0255-965X
1842-4309
DOI:10.15835/nbha45110799