A Numerical Taxonomic Study of Solanum Species and Hybrids

Heiser, Charles B.; Soria, Jorge; Burton, Donald L.

doi:10.1086/282392

Cited by 55 publications

(61 citation statements)

References 6 publications

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“…A similar failure of hierarchic clustering to represent the taxonomic relationships of hybrids was reported by Heiser, Soria and Burton (1965) in their pioneer application of numerical taxonomic methods to Solanum Sect. Solanum.…”

Section: Partial Clusteringsupporting

confidence: 66%

“…The suggestion of Heiser et al (1965) tbat non-hierarcbic clustering might prove useful in tlie study of hybrid populations in the genus Solanum is confirmed. 1269 ation, the two-dimensional trend which arises when the dissimilarity of pairs of local populations tends to increase with increasing geographical separation, and the onedimensional trends which arise in cases of ecoclinal differentiation and when there is a high degree of introgression between two previously distinct populations or groups of populations.…”

Section: Partial Clusteringmentioning

confidence: 66%

See 1 more Smart Citation

The Use of Numerical Methods to Describe Population Differentiation

Jardine

Edmonds

1974

New Phytologist

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Section: Partial Clusteringsupporting

confidence: 66%

Section: Partial Clusteringmentioning

confidence: 66%

The Use of Numerical Methods to Describe Population Differentiation

Jardine

Edmonds

1974

New Phytologist

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“…They are also sister species in the MP analysis (82% MP Jackknife support). This may suggest that these allohexaploid species share at least one of their parents, which is supported by crossability studies by Heiser et al (1965) in which fertile hybrids with 91-95% pollen stainability were produced between S. scabrum and S. nigrum.…”

Section: Solanum Nigrummentioning

confidence: 75%

Genetic diversity of the African hexaploid species Solanum scabrum Mill. and Solanum nigrum L. (Solanaceae)

Manoko

Berg²,

Feron

et al. 2007

Genet Resour Crop Evol

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Two hexaploid species of Solanum sect. Solanum are present in Africa: Solanum scabrum and S. nigrum. Solanum scabrum is a widely cultivated species and is used as a leafy vegetable, as a source of medicine and as a source of ink dye. In previous studies a wide range of morphological diversity has been reported in this species and in some studies subspecies have been proposed. Subspecies are also recognized in S. nigrum. However, it has not been established whether or not the morphological differences are reflected at the genomic level. The present study applies AFLPs to study the genetic diversity in S. scabrum and its relationship to geographical provenance, morphological differences and the possible existence of subspecies within S. scabrum and S. nigrum. The data obtained were analyzed with cluster analysis (using UPGMA and NJ). The results indicate that the genetic variation within S. scabrum was higher within accessions than between accessions. Accessions did not cluster according to their geographical provenance, indicating that accessions from different geographical areas were not significantly different genetically. The clustering reflected neither morphological differences nor domestication status (cultivated or wild). The morphological differences exhibited by S. scabrum could be due to selection by farmers for different plant types. The AFLP derived clustering pattern did not segregate the subspecies recognized in S. scabrum and S. nigrum into separate subclusters.

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“…This would indicate that a much higher number of qualitative descriptors is desirable, as stated by several authors. HEISER et al (1965) for example used 30 scored descriptors and 28 measured ones; CROVELLO (1969) recommended that as many characteristics as possible should be used. The result of using many qualitative descriptors is a 'buffering' effect toward large changes in quatitative characteristics.…”

Section: Resultsanddiscussionmentioning

confidence: 99%

A systematic description of cacao clones. III. Relationships between clones, between characteristics and some consequences for the cacao breeding

Engels

1983

Euphytica

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Theobroma cacao, cacao clones, cacao descriptors, numerical taxonomy, multivariate statistical methods, cacao breeding. SUMMARYThe phenetic relationships of 32 cacao clones were analysed with several multivariate statistical methods and the results were compared with their genetic relationships. Also the relationships between 33 cacao characteristics were studied based on average measurements and observations from each of 294 clones. Some conclusions were drawn with respect to cacao breeding using simple correlations between characteristics.

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A Numerical Taxonomic Study of Solanum Species and Hybrids

Cited by 55 publications

References 6 publications

The Use of Numerical Methods to Describe Population Differentiation

The Use of Numerical Methods to Describe Population Differentiation

Genetic diversity of the African hexaploid species Solanum scabrum Mill. and Solanum nigrum L. (Solanaceae)

A systematic description of cacao clones. III. Relationships between clones, between characteristics and some consequences for the cacao breeding

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