Genetic diversity structure of populus nigra populations in a major rivers system. what is the role of human impact?

Date

2017-09-22

Author

Çiftci, Asiye
Kaya, Zeki

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Populus nigra is one of the most economically and ecologically important forest trees in Turkey, well known for its rapid growth, good ability to vegetative propagation and the extreme uses of its wood. Due to overexploitation, loss of natural distribution area and extreme hybridization and introgression, Populus nigra is one of the most threatened tree species in Turkey and Europe. Using seventeen nuclear SSR loci, the genetic structure of European black poplar populations along the largest river of Turkey was analyzed. All tested loci were highly polymorphic, displaying 4 to 12 alleles per locus. Observed heterozygosity (overall Ho = 0.79) has been higher than the expected (overall He = 0.54) in each population. Although whole river system is sampled from upstream, middle and downstream systematically, low level of genetic differentiation among three locations (FST= 0, 01) and excess of heterozygotes for each location were found. Human mediated dispersal, phenotypic selection, high level of gene flow and extensive circulations of clonal materials may cause to those situations. The genetic data obtained from this study could provide basis for efficient conservation and restoration of species natural populations in its natural habitat as well as having sustainable breeding and poplar plantations in the future.

Subject Keywords

Populus, Clonal, Loci, Allele, Nuclear

URI

https://hdl.handle.net/11511/74735
https://www.iufro.org/fileadmin/material/publications/proceedings-archive/iufro17-abstracts.pdf

Conference Name

IUFRO 125 th Anniversary Congress 2017: Interconnecting Forests ,Science and People, (18 - 22 Eylül 2017)

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Department of Biology, Conference / Seminar

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Genetic diversity of european black poplar (populus nigra) populations from Turkey assessed by microsatellite DNA markers Çiftçi, Asiye; Kaya, Zeki; Department of Biology (2013) The genus Populus is known as a group of forest trees for commercial exploitation. The European black poplar (Populus nigra L.), belonging to the genus Populus, is a keystone species of floodplain forests in Europe. Populus nigra has also been used as a model tree in the study of genetic resource conservation of wild relatives of cultivated plants. Turkey has over 68.000 ha poplar plantations with P. nigra and 77. 000 ha consisting of various hybrids of it. Due to overexplotation, loss of natural distributi...
Genetic diversity and structure of Populus nigra populations in two highly fragmented river ecosystems from Turkey Çiftçi, Asiye; Kaya, Zeki (Springer Science and Business Media LLC, 2019-08-01) European black poplar (Populus nigra L.) is an important tree species in terms of social, economic, and ecological interest in Turkey. Although large poplar plantations meet the needs of the economy, natural genetic resources of the species have been highly degraded due to anthropogenic effects such as overexploitation and habitat fragmentations. To assess genetic diversity and structure of fragmented populations, 124 naturally distributed European black poplar trees from two major rivers (Kızılırmak and Gö...
Genetic differentiation of European black poplar (Populus Nigra L.) clones and populations with respect to some enzymes involved in biosynthesis of cellulose and lignin Taşkıran, Bircan; Kaya, Zeki; Department of Biology (2020) The European black poplar, (Populus nigra L.) is ecologically and economically important fast-growing trees. Its wide distribution range in northern hemisphere, easy vegetative propagation, rapid growth rate and hybridization ability, and also its biomass source potential make European black poplar a perfect candidate for lignocellulosic biomass production. In this study, specific activities of two important cellulose related (SuSy and UGPase) and three lignin pathway related (PAL, 4CL, and CAD) enzymes, we...
Genetic diversity pattern in Populus Nigra populations of two major river systems in Turkey Çiftçi, Asiy; Kaya, Zeki; Department of Biology (2019) European black poplar (Populus nigra L.) is an important tree species in terms of social, economic and ecological interest in Turkey. Although, poplar plantations in large areas meet the needs of the economy, the natural genetic resources of the species have been highly degraded due to anthropogenic effects and natural biological events. To assess genetic diversity structure of natural populations, 124 naturally distributed European black poplar trees from two major rivers (Kızılırmak and Göksu) in Turkey w...
Genetic differentiation between clone collections and natural populations of European black poplar (Populus nigra L.) in turkey Çiftçi, Asiye; Kucukosmanoglu, Filiz; Karahan, Alptekin; Kaya, Zeki (2017-06-01) The European black poplar (Populus nigra L.) is an ecologically and economically important tree species for Turkey. The important and major genetic resources of species for future breeding and ex situ conservation purposes have been archived in a clone bank in Ankara by selecting clones from natural populations and old plantations throughout Turkey. There is no study to date assessing genetic composition these materials. Two-hundred-thirty-three P. nigra clones from six geographic region of Turkey (clone co...

Citation Formats

A. Çiftci and Z. Kaya, “Genetic diversity structure of populus nigra populations in a major rivers system. what is the role of human impact?,” Freiburg, Almanya, 2017, p. 683, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/74735.