NDLI: Soil seed bank contributes significantly to genetic variation of Hypericum sinaicum in a changing environment

Content Provider	Springer Nature Link
Author	Zaghloul, Mohamed Reisch, Christoph Poschlod, Peter
Copyright Year	2013
Abstract	The contribution of soil seed bank of a desert endemic plant species in maintaining genetic diversity has been addressed in this paper through investigating the differences in genetic diversity and structure (using AFLP markers) between plants grown from soil seed bank and standing crop plants within and among five populations of H. sinaicum growing at St. Katherine Protectorate, southern Sinai, Egypt. Standard genetic diversity measures showed that the molecular variation within and among populations was highly significantly different between standing crop and soil seed bank. While soil seed bank had lower genetic diversity than standing crop populations, pooling soil seed bank with standing crop samples resulted in higher diversity. The results revealed also that soil seed bank had lower differentiation (7 %) than among populations of the standing crop (18 %). Results of neighbor-joining, Bayesian clustering and principal coordinate analysis showed that soil seed banks had a separate gene pool different from standing crop. The study came to the conclusion that the genetic variation of the soil seed bank contributes significantly to the genetic variation of the species. This also stresses the importance of elucidating the genetic diversity and structure of the soil seed bank for any sound and long-term conservation efforts for desert species. These have been growing in small-size populations for a long time that any estimates gained only from aboveground sampling of populations may be ambiguous.
Starting Page	1819
Ending Page	1828
Page Count	10
File Format	PDF
ISSN	03782697
Journal	Plant Systematics and Evolution
Volume Number	299
Issue Number	10
e-ISSN	16156110
Language	English
Publisher	Springer Vienna
Publisher Date	2013-05-29
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Genetic buffering Sinai Hypericum sinaicum Conservation Genetic diversity Soil seed bank Plant Sciences Plant Ecology Plant Anatomy/Development Plant Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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