Phylogenetic relationships, based on allozyme data, between six cycad taxa indigenous to South Africa

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dc.contributor.authorVan Der Bank F.H.
dc.contributor.authorVorster P.
dc.contributor.authorVan Der Bank M.
dc.date.accessioned2011-05-15T15:54:55Z
dc.date.available2011-05-15T15:54:55Z
dc.date.issued1998
dc.description.abstractPhylogenetic relationships between Encephalartos altensteinii Lehmann, E. friderici-guilielmii Lehmann, E. lehmannii Lehmann, E. natalensis Dyer and Verdoorn, E. transvenosus Stapf and Burtt Davy and E. villosus Lemaire were studied, using Cycas revoluta Thunberg as outgroup. Three continuous and one discontinuous buffer systems were used and gene products of 21 enzyme coding loci were examined by horizontal starch gel-electrophoresis. A biochemical key, based on fixed allele differences, is presented. Fixed allele differences at one locus between E. altensteinii and E. natalensis may confirm that these species do not share the same gene pool. However, the genetic distance is the least (0.042) between these two species, compared to the mean genetic distance value of 0.222 for the other ingroup taxa. The results are discussed with reference to affinities based on morphology and distribution.
dc.description.versionArticle
dc.identifier.citationSouth African Journal of Botany
dc.identifier.citation64
dc.identifier.citation3
dc.identifier.issn2546299
dc.identifier.urihttp://hdl.handle.net/10019.1/9475
dc.subjectbiogeography
dc.subjectgenetic variation
dc.subjectmorphology
dc.subjectphylogeny
dc.subjectSouth Africa
dc.subjectCycas revoluta
dc.subjectEncephalartos altensteinii
dc.subjectEncephalartos friderici-guilielmii
dc.subjectEncephalartos lehmannii
dc.subjectEncephalartos natalensis
dc.subjectEncephalartos transvenosus
dc.subjectEncephalartos villosus
dc.titlePhylogenetic relationships, based on allozyme data, between six cycad taxa indigenous to South Africa
dc.typeArticle
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