Genetic variation in North American leafy spurge (Euphorbia esula) determined by DNA markers

Levels of inter- and intrapopulation genetic variation were determined in five North American populations of leafy spurge using chloroplast DNA (cpDNA) RFLPs and RAPD markers. Thirteen plastome types were identified among 123 individuals collected from five geographically separated populations. Numb...

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Bibliographic Details
Published in:Weed science 1997-06, Vol.45 (3), p.446-454
Main Authors: Rowe, Martha L., Lee, Donald J., Nissen, Scott J., Bowditch, Brunella M., Masters, Robert A.
Format: Article
Language:English
Subjects:
Chloroplast DNA
Chloroplasts
DNA
Euphorbia esula
euphorbia helioscopia
genetic distance
Genetic diversity
genetic markers
genetic techniques and protocols
Genetic variation
Genomes
Genotypes
Nucleons
Plants
Population genetics
random amplified polymorphic DNA technique
restriction fragment length polymorphism
Special Topics
weed biology
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Summary:Levels of inter- and intrapopulation genetic variation were determined in five North American populations of leafy spurge using chloroplast DNA (cpDNA) RFLPs and RAPD markers. Thirteen plastome types were identified among 123 individuals collected from five geographically separated populations. Number of plastomes within a population ranged from one to seven, with four of the populations having a predominate type plus one or more rarer types. Some plastome types were shared by populations, but plastome distribution among populations was nonrandom. RAPD markers indicated greatest relatedness among individuals within a population. Relatedness among populations as established through RAPDs was greater for geographically closer populations; this relationship was not observed for cpDNA markers. Differences in the range of movement for pollen and seed may account for differences between results of the cpDNA and RAPD analyses. The high degree of genetic variability among North American leafy spurge suggests possible multiple introductions or a high degree of variability within leafy spurge populations in its native range.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500093140