Esterase isozyme variation in the Eragrostis curvula complex (Poaceae)

The biosystematic relationships of the apomictic complex Eragrostis curvula s. lato, is investigated by disc electrophoresis of seed extracts to obtain esterase patterns of 23 accessions representing the morphological variants of this complex: curvula, conferta, robusta, chloromelas and lehmanniana....

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Bibliographic Details
Published in:Plant systematics and evolution 1989-01, Vol.166 (3/4), p.173-181
Main Authors: Poverene, M.M, Curvetto, N.R
Format: Article
Language:English
Subjects:
apomixis
Biological and medical sciences
Chromosome morphology
cluster analysis
cytogenetics
disc electrophoresis
Electrophoresis
Eragrostis curvula
esterases
extracts
Fundamental and applied biological sciences. Psychology
Gels
Genetic variation
genome
isozymes
Optical media
Plant cytology, morphology, systematics, chorology and evolution
Plant morphology
Plants
Ploidies
Seeds
Sexual reproduction
Spermatophyta
Systematics (diagnosis, chromosome numbers)
taxonomy
variation
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Summary:The biosystematic relationships of the apomictic complex Eragrostis curvula s. lato, is investigated by disc electrophoresis of seed extracts to obtain esterase patterns of 23 accessions representing the morphological variants of this complex: curvula, conferta, robusta, chloromelas and lehmanniana. The zymograms thus obtained were classified into four groups on the basis of the presence of certain bands taken as characteristic and constant markers. Within each group variations were found in strict accordance with the morphological and cytogenetic data available on the complex. Cluster analysis showed similarity levels between the strains studied, representing different genomic groups. The esterase pattern proved useful as an additional criterion for identifying the individual taxa making up the complex and for evaluating their reciprocal relationships.
ISSN:0378-2697
1615-6110
DOI:10.1007/BF00935947