The crossability and genetic relationship between Solanum retroflexum Dun. and S. nigrum L.

Ganapathi, A.; Rao, G. R.

doi:10.1508/cytologia.51.757

Cited by 6 publications

(9 citation statements)

References 6 publications

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“…The present study shows that S. nigrum, S. scabrum are closely related species, although this is supported by only moderate bootstrap value, it confirms our previous conclusions (Poczai et al 2008). We also found that there is close relationship between S. retroflexum and S. nigrum, which can be affirmed by the successful crosses by Ganapathi and Rao (1986) made between S. nigrum (2n = 6x = 72) and S. retroflexum (2n = 4x = 48) as female parent. In summary, these results suggest genomic homology between these two species.…”

Section: ⎯⎯⎯⎯supporting

confidence: 88%

Study of the origin of the rarely cultivated edible Solanum species: morphological and molecular data

Poczai¹,

Mátyás²,

Taller³

et al. 2010

Biol. plant.

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The present study applies RAPD technique and morphometric analysis to study the diversity of some accessions belonging to section Solanum. A total of 252 products were amplified with 23 12-mer arbitrary primer pairs, among which 210 were found to be polymorphic. Sixteen morphological characters were measured and used to compile a dendrogram. Both the morphological and RAPD marker analysis clearly separated the different accessions into similar groups. The results indicate that the analyzed cultivars with unknown origin could be derived from S. retroflexum. We found morphological differences among the S. scabrum subsp. scabrum accession which were not reflected in the molecular data. Presumably these accessions represent cultivated forms selected for their habit, fruit quantity and/or quality and leaf size, respectively.

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Section: ⎯⎯⎯⎯supporting

confidence: 88%

Study of the origin of the rarely cultivated edible Solanum species: morphological and molecular data

Poczai¹,

Mátyás²,

Taller³

et al. 2010

Biol. plant.

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“…The putative parental origin of these species has been investigated using traditional crossability and hybridisation techniques (Edmonds 1977; Ganapathi and Rao 1985, 1986b, 1986c, 1986d, 1987a, 1987b) and, more recently, using molecular markers (Manoko 2007; Poczai and Hyvönen 2011). Chromosome painting or GISH (genomic in situ hybridisation) techniques have not been used in determining progenitor genomes in the morelloids as they have with great success in Nicotiana (e.g.…”

Section: Polyploidy and Hybridisationmentioning

confidence: 99%

“…Regular bivalent pairing in hybrids derived from S. nigrum × S. scabrum crosses indicate homology of parental genomes of the two hexaploids (Ganapathi and Rao 1987a). Evidence from other crossing studies suggests that the tetraploid S. villosum , S. retroflexum or one of their close relatives, has also been involved in the parentage of S. nigrum (Ganapathi and Rao 1986b, 1986c) and that S. villosum is one of the parents of S. scabrum (Ganapathi and Rao 1985, 1987a, 1987b). As only a limited set of the diploid and tetraploid species have been used in these crossing studies, results have to be interpreted with care in that the species tested, or any of its close relatives, could have been involved in the parentage.…”

Section: Polyploidy and Hybridisationmentioning

confidence: 99%

“…General overviews of Black nightshade taxonomy and systematics have been published (Edmonds 1977, 1978, 1979a; Chakrabarti and Sharma 1994), including geographically focused taxonomic treatments for South America (Edmonds 1972), North America (Schilling 1981), Australia (Henderson 1974), Africa (Edmonds and Chweya 1997; Olet 2004; Manoko 2007; Edmonds 2012), Europe (Wessely 1960) and the Indian subcontinent (Schilling and Andersen 1990) and detailed cytological, molecular and morphological studies (Saarisalo-Taubert 1967; Venkateswarlu and Rao 1972; Edmonds 1982, 1983, 1984a; Ganapathi and Rao 1986a, 1986b, 1986c, 1986d, 1987a, 1987b; Nandhini and Paramaguru 2014). These studies have greatly enhanced our understanding of the complex morphological and ploidy level variation present in the group, but much taxonomic work remains within the Morelloids especially in South America, where more than half of the known Morelloid species are found (Barboza et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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A revision of the Old World Black Nightshades (Morelloid clade of Solanum L., Solanaceae)

Särkinen¹,

Poczai²,

Barboza³

et al. 2018

126

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The Morelloid clade, also known as the black nightshades or “Maurella” (Morella), is one of the 10 major clades within Solanum L. The pantropical clade consists of 75 currently recognised non-spiny herbaceous and suffrutescent species with simple or branched hairs with or without glandular tips, with a centre of distribution in the tropical Andes. A secondary centre of diversity is found in Africa, where a set of mainly polyploid taxa occur. A yet smaller set of species is found in Australasia and Europe, including Solanum nigrum L., the type of the genus Solanum. Due to the large number of published synonyms, combined with complex morphological variation, our understanding of species limits and diversity in the Morelloid clade has remained poor despite detailed morphological studies carried out in conjunction with breeding experiments. Here we provide the first taxonomic overview since the 19th century of the entire group in the Old World, including Africa, Asia, Australia, Europe and islands of the Pacific. Complete synonymy, morphological descriptions, distribution maps and common names and uses are provided for all 19 species occurring outside the Americas (i.e. Africa, Asia, Australia, Europe and islands of the Pacific). We treat 12 species native to the Old World, as well as 7 taxa that are putatively introduced and/or invasive in the region. The current knowledge of the origin of the polyploid species is summarised. A key to all of the species occurring in the Old World is provided, together with line drawings and colour figures to aid identification both in herbaria and in the field. Preliminary conservation assessments are provided for all species.

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“…Although the morphological diversification and genetic isolating mechanism between the members of S. nigrum complex have been studied by several workers (Tandon and Rao 1964, 1966, Khan et al 1977, Edmonds 1977, Heiser et al 1979, Beg and Khan 1984, Ganpathi and Rao 1986, 1987, the specific nature of genetic isolating mechanism among the species is still not well understood and therefore a cytomorphological study of S. villosum ssp. puniceum, S. americanum and their F1 hybrids has been undertaken to understand the mechanism of isolating barrier involved between these species.…”

mentioning

confidence: 99%

Morphological diversification and genetic lsolating mechanism between some members of Solanum nigrum complex.

1989

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The crossability and genetic relationship between Solanum retroflexum Dun. and S. nigrum L.

Cited by 6 publications

References 6 publications

Study of the origin of the rarely cultivated edible Solanum species: morphological and molecular data

Study of the origin of the rarely cultivated edible Solanum species: morphological and molecular data

A revision of the Old World Black Nightshades (Morelloid clade of Solanum L., Solanaceae)

Morphological diversification and genetic lsolating mechanism between some members of Solanum nigrum complex.

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