Molecular systematics of the genus Senecio L. II: The origin of S. vulgaris L.

Ingram, Richard

doi:10.1038/hdy.1992.103

Cited by 13 publications

(1 citation statement)

References 31 publications

(23 reference statements)

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“…The annual species S. vulgaris (Asteraceae), common groundsel, is subdivided into two subspecies (Harris & Ingram 1992). The subspecies vulgaris is the common weedy form, while the subspecies denticulatus (O.F.…”

Section: Introductionmentioning

confidence: 99%

Population dynamics of the annual plant Senecio vulgaris in ruderal and agricultural habitats

Leiss

Müller‐Schärer

2001

Basic and Applied Ecology

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Section: Introductionmentioning

confidence: 99%

Population dynamics of the annual plant Senecio vulgaris in ruderal and agricultural habitats

Leiss

Müller‐Schärer

2001

Basic and Applied Ecology

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Origins of the new allopolyploid species Senecio cambrensis (asteraceae) and its relationship to the canary islands endemic Senecio teneriffae

Lowe

Abbott

1996

American J of Botany

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The distribution of a 330 bp cpDNA insertion was reexamined in British material of Senecio cambrensis (2n = 6x = 60), its two putative parental taxa, S. squalidus (2n = 2x = 20) and S. vulgaris (2n = 4x = 40), and the closely related Canary Islands' endemic S. teneriffae (2n = 6x = 60). This formed part of a test of the hypothesis that the Welsh form of S. cambrensis is derived from introduced S. teneriffae rather than having originated in Wales via allopolyploidy as previously supposed. It was established that the 330 bp insertion was carried by all plants of Welsh S. cambrensis and also S. teneriffae, but was absent from the cpDNA of Edinburgh S. cambrensis and all plants of British S. squalidus and S. vulgaris var. vulgaris surveyed. However, two of 19 individuals tested of S. vulgaris var. hibernicus also possessed the cpDNA insertion, indicating that it is present in British material of S. vulgaris, although at low frequency. The close similarity between S. teneriffae and S. cambrensis, especially the Welsh form of S. cambrensis, was confirmed by the results of a restriction analysis of rDNA, and also morphometric and crossing studies. However, isozyme analysis showed that S. teneriffae is monomorphic for βEST‐3 and ACO‐1 phenotypes that are not present in Welsh and Edinburgh S. cambrensis, nor in S. squalidus and S. vulgaris material surveyed. It is concluded that S. teneriffae and S. cambrensis are two closely related allohexaploid taxa that have very similar, but different origins. It is postulated that whereas S. cambrensis (in Wales and Edinburgh) is the allohexaploid of S. vulgaris and S. squalidus, S. teneriffae is possibly the allohexaploid of S. vulgaris and S. glaucus, the latter being a diploid species closely related to S. squalidus.

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Chloroplast DNA evidence for introgression and long distance dispersal in the desert annualSenecio flavus (Asteraceae)

Liston

Kadereit

1995

Pl Syst Evol

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Molecular systematics of the genus Senecio L. II: The origin of S. vulgaris L.

Cited by 13 publications

References 31 publications

Population dynamics of the annual plant Senecio vulgaris in ruderal and agricultural habitats

Population dynamics of the annual plant Senecio vulgaris in ruderal and agricultural habitats

Origins of the new allopolyploid species Senecio cambrensis (asteraceae) and its relationship to the canary islands endemic Senecio teneriffae

Chloroplast DNA evidence for introgression and long distance dispersal in the desert annualSenecio flavus (Asteraceae)

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