Environmental, phenotypic and genetic variation of wild barley (Hordeum spontaneum) from Israel

Wild relatives of crop plants offer an attractive gene pool for cultivar improvement. We evaluated genetic and phenotypic variation for a set of 72 Israeli accessions of wild barley from 21 populations. These populations were grouped further into four ecotypes. In addition, environmental variables d...

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Bibliographic Details
Published in:Euphytica 2004-06, Vol.137 (3), p.297-309
Main Authors: Vanhala, T.K, Rijn, C.P.E. van, Buntjer, J, Stam, P, Nevo, E, Poorter, H, Eeuwijk, F.A. van
Format: Article
Language:English
Subjects:
aflp markers
Agronomy. Soil science and plant productions
air temperature
amplified fragment length polymorphism
associations
Barley
Biological and medical sciences
cereals
Cultivars
diversity
ecology
Ecotypes
environmental factors
fertile crescent
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
Genetic diversity
genetic markers
Genetic resources, diversity
genetic variation
Genetics
Genetics and breeding of economic plants
genotype-environment interaction
Hordeum spontaneum
Hordeum vulgare subsp. spontaneum
morphological traits
phenotypic variation
Phenotypic variations
Plant material
polymorphism
populations
rain
relative humidity
resources
wild relatives
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Summary:Wild relatives of crop plants offer an attractive gene pool for cultivar improvement. We evaluated genetic and phenotypic variation for a set of 72 Israeli accessions of wild barley from 21 populations. These populations were grouped further into four ecotypes. In addition, environmental variables describing the local conditions for the populations were used to infer the environmental divergence. Genetic, phenotypic and environmental distances were estimated from the data and UPGMA dendrograms constructed. The results showed that genetic variation was larger between populations than within them, whereas for phenotypic measurements variation was larger within populations than between them. No significant correlation was found between genetic and phenotypic similarities, or between phenotypic and environmental similarities, whereas a weak correlation between genetic and environmental similarities was detected. Twenty-three AFLP-markers were identified to be ecotype specific. Chromosomal location was known for five of these markers. Four of the five ecotype specific markers were correlated with both phenotypic traits and environmental variables.[PUBLICATION ABSTRACT]
ISSN:0014-2336
1573-5060
DOI:10.1023/b:euph.0000040450.91906.c5