High genetic variability and complex population structure of the native Chinese hazelnut

High genetic variability and complex population structure of the native Chinese hazelnut Corylus mandshurica Maxim. belongs to the family Betulaceae and is an important economically and ecologically tree in China. Wild Corylus mandshurica resources have been gradually destroyed recently. Thus, investigation into the genetic diversity and genetic differentiation is indispensable for the efficient protection and breeding of Corylus mandshurica resources. A total of 347 individuals collected from 12 natural populations were investigated using amplified fragment length polymorphism markers. All 12 Corylus mandshurica populations showed various degrees of genetic diversity, with the value for the Mudanjiang, Heilongjiang Province population reflecting maximum genetic diversity. A UPGMA den- drogram was classified into two main clusters (Cluster I and Cluster II). Moreover, STRUCTURE analysis showed that the result of the divisions at K = 2 was highly related to the UPGMA dendrogram and PCoA scatter plot. The results of both F and AMOVA suggested that there was low genetic differentiation among different populations. The high level of gene ST flow among populations can effectively prevent genetic drift. BARRIER analysis indicated that the first barrier boundary located between Cluster I and Cluster II was probably caused by the Yanshan Mountains. Our study provides valuable information for Corylus mandshurica conservation and breeding in the future. Keywords Corylus http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Brazilian Journal of Botany Springer Journals

High genetic variability and complex population structure of the native Chinese hazelnut

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Botanical Society of Sao Paulo
Subject
Life Sciences; Plant Systematics/Taxonomy/Biogeography
ISSN
0100-8404
eISSN
1806-9959
D.O.I.
10.1007/s40415-018-0466-8
Publisher site
See Article on Publisher Site

Abstract

Corylus mandshurica Maxim. belongs to the family Betulaceae and is an important economically and ecologically tree in China. Wild Corylus mandshurica resources have been gradually destroyed recently. Thus, investigation into the genetic diversity and genetic differentiation is indispensable for the efficient protection and breeding of Corylus mandshurica resources. A total of 347 individuals collected from 12 natural populations were investigated using amplified fragment length polymorphism markers. All 12 Corylus mandshurica populations showed various degrees of genetic diversity, with the value for the Mudanjiang, Heilongjiang Province population reflecting maximum genetic diversity. A UPGMA den- drogram was classified into two main clusters (Cluster I and Cluster II). Moreover, STRUCTURE analysis showed that the result of the divisions at K = 2 was highly related to the UPGMA dendrogram and PCoA scatter plot. The results of both F and AMOVA suggested that there was low genetic differentiation among different populations. The high level of gene ST flow among populations can effectively prevent genetic drift. BARRIER analysis indicated that the first barrier boundary located between Cluster I and Cluster II was probably caused by the Yanshan Mountains. Our study provides valuable information for Corylus mandshurica conservation and breeding in the future. Keywords Corylus

Journal

Brazilian Journal of BotanySpringer Journals

Published: May 30, 2018

References

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