Are <i>Beta procumbens</i> Chr. Sm. and <i>Beta webbiana</i> Moq. Different Species?

Wagner, H.; Gimbel, Eva-Maria; Wricke, G.

doi:10.1111/j.1439-0523.1989.tb00309.x

Cited by 20 publications

(8 citation statements)

References 18 publications

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“…with B. patellaris being self-compatible and B. procumbens and B. webbiana being self-incompatible can be interpreted as evidence for B. procumbens and B. webbiana being more related to each other than to B. patellaris. This is supported by results from Wagner et al (1989) and from studies with monosomic chromosome additions (Van Geyt et al, 1988;Reamon-Ramos & Wricke, 1992) where, based on isozyme data, B. procumbens and B. webbiana were considered to be two forms of the same species. Restriction enzyme analyses based on polymorphisms in PstI and EcoRI restriction endonuclease patterns of plastidal DNAs also indicates the splitting of the section into subsections (Fritzche et al, 1987).…”

Section: Discussionsupporting

confidence: 50%

Self-incompatibility reactions in wild species of the genusBeta and their relation to taxonomical classification and geographical origin

Bruun

Haldrup

Petersen³

et al. 1995

Genet Resour Crop Evol

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SummaryThe expression of self-incompatibility (SI) rejection patterns in 29 accessions of wild Beta species was studied at the anatomical level. Three different SI-related pollen tube rejection patterns were observed: (1) The pollen germinate from many pores and the pollen tubes are very short, often with swollen tips. (2) The pollen germinate and grow along the stigmatic papillae, where the self-incompatibility response takes place at the basis of the stigmatic papillae. (3) The pollen germinate and the pollen tubes grow with a distinct direction towards the style; the self-incompatibility response is observed at the border between the stigma and the style. In general the patterns observed in B. vulgaris L. subsp, vulgaris sensu lato seem to be in accordance with an ongoing microevolutionary process that has given rise to the large maritima complex (viz. B. trojana Pamukquo~lu, B. atriplicifolia Rouy, and B. maritima (L.) Arcangeli), in which it seems that the variation is related to geographical origin. The data support the idea that the endemic B. vulgaris subsp, adanensis (Pamukquo~lu) Ford-Lloyd & Williams forms a distinct, self-compatible group separated from the maritima complex and also that B. macrocarpa Gussone should be retained as a separate self-compatible species. For the section Corollinae Ulbrich the rejection patterns are in accordance with a division into two subsections (viz., Lomatogonae and Trigynae) previously suggested on the basis of phenotypical and molecular data. The results from Procumbentes Ulbrich are interpreted as evidence for B. procumbens Smith and B. webbiana Moquin being more related to each other than to B. patellaris Moquin, reflecting also a similar taxonomic relationship.

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Section: Discussionsupporting

confidence: 50%

Self-incompatibility reactions in wild species of the genusBeta and their relation to taxonomical classification and geographical origin

Bruun

Haldrup

Petersen³

et al. 1995

Genet Resour Crop Evol

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“…laris has been regarded as an allotetraploid (Abe et al, 1987;Senda et al, 1995), with B. procumbens and B. webbiana as diploids. Molecular studies have recently suggested that the last two are extreme forms of the same species (Wagner et al, 1989;Mita et al, 1991;Jung et al, 1993;Kishima et al, 1995), a situation originally proposed by Curtis (1968) based on morphological characteristics. Our ITS1 sequence data suggest that one accession (B0535), designated by the original collector as B. procumbens, may actually be B. webbiana.…”

Section: Discussionmentioning

confidence: 96%

Genetic relationships within the genus Beta determined using both PCR-based marker and DNA sequencing techniques

1998

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The sequences of ITS1 of the internal transcribed spacer regions of nuclear ribosomal DNA from 11 species or subspecies in four sections of the genus Beta were compared. Phylogeny of these wild beet taxa was inferred from the sequence data using phenetic and phylogenetic analyses. Multiple accessions from the same 11 taxa were subjected to random amplified polymorphic DNA (RAPD) analysis, and the data were analysed phenetically. With both molecular techniques and each analysis, three distinctive groups were formed: species from section Beta formed one group; species from section Procumbentes formed a very distinct group; and species from both section Nanae and section Corollinae clustered together forming the third group, which is closer to Beta than to Procumbentes. The RAPD data revealed withinsection interspecies relationships that are consistent with those reported previously; this was not always the case using the single-locus sequence data.

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“…However, the relatively weak signals in the latter instance suggest that the number of hybridizing fragments in this hne is lower. The high degree of polymorphism between B. procumbens and B. webbiana chromosomes was not expected because assays for isozymes did not reveal any differences between the two species (WAGNER et al 1989).…”

Section: Resultsmentioning

confidence: 98%

A DNA Probe for Rapid Screening of Sugar Beet (Beta vulgaris L.) Carrying Extra Chromosomes from Wild Beets of the Procumbentes Section

Jung¹,

Herrmann²

1991

Plant Breeding

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Genes from wild species of the Procumbentes section can be transferred to sugar beet chromosomes via translocations. Since large translocations, including for example a gene for nematode resistance, generally result in meiotic disturbances, there is a need to select new diploid resistant beets from progenies of monosomic wild beet addition lines. A dispersed repetitive DNA probe, which is closely correlated with the resistance gene and hybridizes exclusively with wild beet DNA, appears to be highly superior to selection based on isozyme markers. Characteristic 'fingerprints' on the available monosomic addition lines reveal the existence of at last 5 different chromosomes in the wild species each housing a gene for nematode resistance. This probe can be used advantageously to identify individuals carrying the intact or fragmented wild beet chromosomes, or even various amounts of translocated chromatin. Strategies are discussed for the identification of new translocation types using straightforward squash dot or Southern hybridization techniques in combination with the wild beet DNA probe.

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Are Beta procumbens Chr. Sm. and Beta webbiana Moq. Different Species?

Cited by 20 publications

References 18 publications

Self-incompatibility reactions in wild species of the genusBeta and their relation to taxonomical classification and geographical origin

Self-incompatibility reactions in wild species of the genusBeta and their relation to taxonomical classification and geographical origin

Genetic relationships within the genus Beta determined using both PCR-based marker and DNA sequencing techniques

A DNA Probe for Rapid Screening of Sugar Beet (Beta vulgaris L.) Carrying Extra Chromosomes from Wild Beets of the Procumbentes Section

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