Indigenous forests of European black poplar along the Danube River: genetic structure and reliable detection of introgression
2015
Аутори:
Jelic, MihailoPatenković, Aleksandra
Skorić, Marijana
Misic, Danijela
Kurbalija Novičić, Zorana
Bordacs, Sandor
Varhidi, Ferenc
Vasic, Ivana
Benke, Attila
Frank, Georg
Šiler, Branislav
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
The European black poplar (Populus nigra L.) is a tree species that once
had the central role in the development of riparian ecosystems in a
great part of Europe and Asia. During centuries, it is harassed by the
riverside's urbanization, drainage of wetlands, and controlled river
management, and compromised by intercrossing with other poplar species
and cultivated hybrids. With the aim to perceive its genetic diversity
and integrity along the Danube River, 12 natural P. nigra forests from
corresponding protected areas were assessed using eight highly
polymorphic microsatellite loci and win3 genetic marker. In the sample
set, among individuals morphologically recognized as P. nigra, 2.28\%
were identified as P. x euramericana hybrids and those were excluded
from further analyses. High number of alleles and high heterozigosity
have been observed in all populations. Only 2.95 \% of total genetic
variance was recorded among populations, while the pattern of genetic
differentiation corresponds to the isolation by geographic distance. It
was found that one population had experienced a recent reduction in
population size. We infer that genetic integrity and variation of
European black poplar is not compromised within the studied areas which
are, therefore, able to provide high-quality genetic material of
nonhybrid P. nigra for maintaining and promoting metapopulations along
the Danube River.
Кључне речи:
European black poplar; Populus nigra; Danube; Population structure; Introgression; Diagnostic markers; MicrosatellitesИзвор:
Tree Genetics & Genomes, 2015, 11, 89
DOI: 10.1007/s11295-015-0915-5
ISSN: 1614-2942