Limited ecoclinal variation found in Malva parviflora (small-flowered mallow) across the Mediterranean-climatic agricultural region of Western Australia

Michael, Pippa J., Steadman, Kathryn J. and Plummer, Julie A. (2006) Limited ecoclinal variation found in Malva parviflora (small-flowered mallow) across the Mediterranean-climatic agricultural region of Western Australia. Australian Journal of Agricultural Research, 57 7: 823-830. doi:10.1071/AR05187


Author Michael, Pippa J.
Steadman, Kathryn J.
Plummer, Julie A.
Title Limited ecoclinal variation found in Malva parviflora (small-flowered mallow) across the Mediterranean-climatic agricultural region of Western Australia
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 2006
Sub-type Article (original research)
DOI 10.1071/AR05187
Volume 57
Issue 7
Start page 823
End page 830
Total pages 8
Place of publication Collingwood
Publisher CSIRO Publishing
Language eng
Subject 07 Agricultural and Veterinary Sciences
Abstract Malva parviflora L. populations were collected from 24 locations across the Mediterranean-climatic agricultural region of Western Australia and grown in Perth in a common garden experiment. Seventeen morphometric and taxonomic measurements were taken and genetic variation was investigated by performing principal components analysis (PCA). Taxonomic measurements confirmed that all plants used in the study were M. parviflora. Greater variation occurred within populations than between populations. Separation between populations was only evident between northern and southern populations along principal components 2 (PC2), which was due mainly to flowering time. Flowering time and consequently photoperiod were highly correlated with latitude and regression analysis revealed a close relationship (r(2) = 0.6). Additionally, the pollination system of M. parviflora was examined. Plants were able to self-pollinate without the need for external vectors and the pollen ovule ratio (31 +/- 1.3) revealed that M. parviflora is most likely to be an obligate inbreeder with a slight potential for outcrossing. The limited variation of M. parviflora enhances the likelihood of suitable control strategies being effective across a broad area.
Keyword Agriculture, Multidisciplinary
Malvaceae
Small-flowered Mallow
Weed
Life-history Traits
Genetic-variation
Abutilon-theophrasti
2 Populations
Clover
Dispersal
Sardinia
Systems
Plants
Crops
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Pharmacy Publications
 
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Created: Mon, 13 Aug 2007, 16:22:12 EST