Isozyme evidence and the origin of Senecio vulgaris (Compositae)

Paul A. Ashton; Richard J. Abbott

doi:10.1007/BF00937594

Isozyme evidence and the origin of Senecio vulgaris (Compositae)

Paul A. Ashton, Richard J. Abbott^*

^*Corresponding author for this work

Biology

Research output: Contribution to journal › Article (journal) › peer-review

15 Citations (Scopus)

Abstract

An electrophoretic survey of isozyme variation was conducted to test the hypothesis that Senecio vulgaris L. (2n = 40) is of autotetraploid origin from S. vernalisWaldst. & Kit. (2n = 20). It was established that S. vulgaris exhibited fixed heterozygosity at three loci examined, showed disomic inheritance at all polymorphic loci, and contained a gene (αEst-1) and an allele (Aat-3b) which were not present in the single population of S. vernalis surveyed. From this it is concluded that S. vulgaris is not of autotetraploid origin. Instead, the genetic evidence is in keeping with an allopolyploid origin of S. vulgaris with the possibility that S. vernalis acted as one of its two parents.

Original language	English
Pages (from-to)	167-174
Number of pages	8
Journal	Plant Systematics and Evolution
Volume	179
Issue number	3-4
DOIs	https://doi.org/10.1007/BF00937594
Publication status	Published - 30 Sept 1992

Keywords

allopolyploidy
Ancestry
Angiosperms
autopolyploidy
Compositae
isozyme variation
S. squalidus
S. vernalis
Senecio vulgaris

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10.1007/BF00937594

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title = "Isozyme evidence and the origin of Senecio vulgaris (Compositae)",

abstract = "An electrophoretic survey of isozyme variation was conducted to test the hypothesis that Senecio vulgaris L. (2n = 40) is of autotetraploid origin from S. vernalisWaldst. & Kit. (2n = 20). It was established that S. vulgaris exhibited fixed heterozygosity at three loci examined, showed disomic inheritance at all polymorphic loci, and contained a gene (αEst-1) and an allele (Aat-3b) which were not present in the single population of S. vernalis surveyed. From this it is concluded that S. vulgaris is not of autotetraploid origin. Instead, the genetic evidence is in keeping with an allopolyploid origin of S. vulgaris with the possibility that S. vernalis acted as one of its two parents.",

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AU - Ashton, Paul A.

AU - Abbott, Richard J.

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N2 - An electrophoretic survey of isozyme variation was conducted to test the hypothesis that Senecio vulgaris L. (2n = 40) is of autotetraploid origin from S. vernalisWaldst. & Kit. (2n = 20). It was established that S. vulgaris exhibited fixed heterozygosity at three loci examined, showed disomic inheritance at all polymorphic loci, and contained a gene (αEst-1) and an allele (Aat-3b) which were not present in the single population of S. vernalis surveyed. From this it is concluded that S. vulgaris is not of autotetraploid origin. Instead, the genetic evidence is in keeping with an allopolyploid origin of S. vulgaris with the possibility that S. vernalis acted as one of its two parents.

AB - An electrophoretic survey of isozyme variation was conducted to test the hypothesis that Senecio vulgaris L. (2n = 40) is of autotetraploid origin from S. vernalisWaldst. & Kit. (2n = 20). It was established that S. vulgaris exhibited fixed heterozygosity at three loci examined, showed disomic inheritance at all polymorphic loci, and contained a gene (αEst-1) and an allele (Aat-3b) which were not present in the single population of S. vernalis surveyed. From this it is concluded that S. vulgaris is not of autotetraploid origin. Instead, the genetic evidence is in keeping with an allopolyploid origin of S. vulgaris with the possibility that S. vernalis acted as one of its two parents.

KW - allopolyploidy

KW - Ancestry

KW - Angiosperms

KW - autopolyploidy

KW - Compositae

KW - isozyme variation

KW - S. squalidus

KW - S. vernalis

KW - Senecio vulgaris

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JO - Plant Systematics and Evolution

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ER -

Isozyme evidence and the origin of Senecio vulgaris (Compositae)

Abstract

Keywords

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