Genetic Diversity of Persian Ecotypes of Indian Walnut (Aeluropus littoralis (Gouan) Pari.) by AFLP and ISSR Markers

Genetic Diversity of Persian Ecotypes of Indian Walnut (Aeluropus littoralis (Gouan) Pari.) by... Indian walnut Aeluropus littoralis (Gouan) Pari, well known for its salt tolerance and forage quality, is a perennial monocot grass from Chlorideae tribe that shows a high potential to become an important genetic model. Although, Aeluropus germplasm is very rich in Iran; but is still unexplored. In this study, 20 ecotypes of A. littoralis were gathered from different geographic zones and a set 16 primers (ISSRs-AFLPs combined) was used for genetic diversity evaluation. A total of 635 fragments and 594 polymorphic fragments were produced (93.5%) and modest levels of genetic similarity were found (ranging from 0.38 to 0.71) among ecotypes. The results showed an equal competition between the two markers on polymorphism detection, so both molecular techniques were able to distinguish the A. littoralis ecotypes. Furthermore, Dendrogram based on both the Bayesian and PCoA analysis showed a clear discrimination and significant variation among ecotypes; however, molecular clustering indicated a weak concordance with geographical grouping. The amount of molecular diversity revealed by molecular markers for A. littoralis in this study can be exploited for pasture conservation programs and new forage crop development. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Cytology and Genetics Springer Journals

Genetic Diversity of Persian Ecotypes of Indian Walnut (Aeluropus littoralis (Gouan) Pari.) by AFLP and ISSR Markers

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Publisher
Pleiades Publishing
Copyright
Copyright © 2018 by Allerton Press, Inc.
Subject
Biomedicine; Human Genetics
ISSN
0095-4527
eISSN
1934-9440
D.O.I.
10.3103/S009545271803012X
Publisher site
See Article on Publisher Site

Abstract

Indian walnut Aeluropus littoralis (Gouan) Pari, well known for its salt tolerance and forage quality, is a perennial monocot grass from Chlorideae tribe that shows a high potential to become an important genetic model. Although, Aeluropus germplasm is very rich in Iran; but is still unexplored. In this study, 20 ecotypes of A. littoralis were gathered from different geographic zones and a set 16 primers (ISSRs-AFLPs combined) was used for genetic diversity evaluation. A total of 635 fragments and 594 polymorphic fragments were produced (93.5%) and modest levels of genetic similarity were found (ranging from 0.38 to 0.71) among ecotypes. The results showed an equal competition between the two markers on polymorphism detection, so both molecular techniques were able to distinguish the A. littoralis ecotypes. Furthermore, Dendrogram based on both the Bayesian and PCoA analysis showed a clear discrimination and significant variation among ecotypes; however, molecular clustering indicated a weak concordance with geographical grouping. The amount of molecular diversity revealed by molecular markers for A. littoralis in this study can be exploited for pasture conservation programs and new forage crop development.

Journal

Cytology and GeneticsSpringer Journals

Published: Jun 4, 2018

References

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