NDLI: A Genetic Study of a Salix Germplasm Resource Reveals New Insights into Relationships Among Subgenera, Sections and Species

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A Genetic Study of a Salix Germplasm Resource Reveals New Insights into Relationships Among Subgenera, Sections and Species

Content Provider	Springer Nature Link
Author	Trybush, Sviatlana Jahodová, Šárka Macalpine, William Karp, Angela
Copyright Year	2008
Abstract	Genetic relationships among 154 genotypes, including 50 species, held within the UK National Willow Collection were analysed using nine primer combinations in an optimised fluorescent amplified fragment length polymorphism (AFLP®) protocol. The AFLP® data resolved relationships at all levels, from discriminating between closely related accessions to differentiating among majority of species, sections and subgenera. The neighbour-joining dendrogram split accessions into three major well-supported clusters, two of which comprised species of the subgenera Vetrix and Salix. Surprisingly, the third (98% bootstrap support) comprised only Salix triandra accessions. The genetic similarity (GS) between S. triandra and Salix or Vetrix was similar (0.39 and 0.40, respectively) and greater than the genetic similarity between Salix and Vetrix (GS = 0.57). Separate clustering of S. triandra is also supported by hierarchical analysis of molecular variance (AMOVA), that partitioned 31.4% of the total variance between these three groups, whereas only 16.3% was partitioned between the two subgenera. These results challenge all current classifications which assign S. triandra to subgenus Salix. Principal coordinate analysis gave corresponding results and facilitated interpretation of relationships among species within sections of the two subgenera, which are discussed. The study included 40 species which have been used in breeding, and the findings will facilitate the choice of parents and interpretation of the results of different crosses, on the basis of more accurate knowledge of genetic relationships. AFLPs® also detected identical genotypes (within the limits of AFLP® error) which should not be used as distinct parents in breeding programmes.
Starting Page	67
Ending Page	79
Page Count	13
File Format	PDF
ISSN	19391234
Journal	BioEnergy Research
Volume Number	1
Issue Number	1
e-ISSN	19391242
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-04-08
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	AFLP® Diversity Genetic relationships Salix triandra Willow breeding Ecology Plant Genetics & Genomics Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment Agronomy and Crop Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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