caa a22 4500 477039227 CHVBK 20180405111312.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00989051 doi (NATIONALLICENCE)springer-10.1007/BF00989051 Speciation in Virgilia ( Fabaceae ): Allopatric divergence followed by introgression? [Elektronische Daten] [Michelle van der Bank, F. van der Bank, B. van Wyk] Levels of variation revealed by starch gel-electrophoresis were compared with morphological and chemical variation within and among the species and subspecies ofVirgilia:V. oroboides subsp.oroboides, V. oroboides subsp.ferruginea andV. divaricata. The data sets exhibited concordance in that all point to a very close relationship between the taxa. Differences are mostly quantitative and an overlapping east-west gradient of character variation is indicated. Analysis of morphological and chemical characters showed thatV. oroboides subsp.ferruginea andV. divaricata are relatively distinct, whereas allozyme analysis indicated a high degree of genetic similarity among populations of these two taxa. The observed pattern of variation suggests relatively recent speciation with subsequent introgressive hybridisation resulting in a geographical and ecological gradient. Springer-Verlag, 1996 Fabaceae nationallicence Podalyrieae nationallicence Virgilia nationallicence Biochemical genetics nationallicence electrophoresis nationallicence genetic distance nationallicence speciation nationallicence van der Bank Michelle Department of Botany, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut van der Bank F. Research Unit for Aquatic and Terrestrial Ecosystems, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut van Wyk B. Department of Botany, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut Plant Systematics and Evolution Springer-Verlag 201/1-4(1996-03-01), 57-73 0378-2697 201:1-4<57 1996 201 606 https://doi.org/10.1007/BF00989051 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00989051 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- van der Bank Michelle Department of Botany, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut NATIONALLICENCE 700 1- van der Bank F. Research Unit for Aquatic and Terrestrial Ecosystems, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut NATIONALLICENCE 700 1- van Wyk B. Department of Botany, Rand Afrikaans University, Auckland Park, P.O. Box 524, 2006, Johannesburg, Republic of South Africa aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 201/1-4(1996-03-01), 57-73 0378-2697 201:1-4<57 1996 201 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer