Karyological studies in the genus Phaseolus, Linn.

Sarbhoy, R. K.

doi:10.1508/cytologia.45.363

Cited by 21 publications

(11 citation statements)

References 16 publications

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“…1). There are divergent opinions about the basic (Table 1) differ from those presented by Sinha and Roy (1979), that are 31.86 (TCL) and 45.13 (TF%), Sarbhoy (1980) …”

Section: Fabaceaementioning

confidence: 89%

Cytological Studies in Climbers of a Brazilian Forest Reserve.

Lombello¹,

Forni‐Martins

1998

CYTOLOGIA

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“…1). There are divergent opinions about the basic (Table 1) differ from those presented by Sinha and Roy (1979), that are 31.86 (TCL) and 45.13 (TF%), Sarbhoy (1980) …”

Section: Fabaceaementioning

confidence: 89%

Cytological Studies in Climbers of a Brazilian Forest Reserve.

Lombello¹,

Forni‐Martins

1998

CYTOLOGIA

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“…Lenotodon (Rousi 1973), Crotalaria (Gupta and Gupta 1978), Phaseolus (Sarbhoy 1980) and Sesbania (Vijayakumar andKuriachan 1995, Abou El-Enain et al 1998). These authors argued that evolution of karyotype might be inferred from symmetry to asymmetry as a result of pericentric inversion or unequal translocation.…”

Section: Methodsmentioning

confidence: 99%

Karyological Studies on Some Taxa of the Genus Vicia L. (Fabaceae).

Kamel

1999

CYTOLOGIA

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Summary Karyological studies on 16 species of Vicia L., including 10 species from the Egyptian flora are presented. Chromosome counts are observed for two species for the first time (2n=10 in V cinerea and V nigra). A diploid number of 2n=10 (x=5) has been found in 4 species, 2n=12 (x=6) in 2 species and 2n=14 (x=7) was recorded in 10 species V hirsuta was found to have 2 B-chromosomes. The karyotype in the examined species is more or less symmetric. However, considerable variations exist in chromosome size among the species studied. The results of the present study confirm that x=7 may be considered the basic number in the genus.The genus Vicia L. is one of the largest genera in the family Leguminosae (Fabaceae) , which belong to the subfamily Papilionoideae (Faboideae) of tribe Vicieae, which comprise 5 genera. More than 140 species belong to this genus (Mabberley 1987). They are categorized into 4 sections: Cracca, Ervum, Euvicia (Vicia) and Faba (Yamamoto 1973). These 4 sections differ in their morphological and evolutionary status. Chooi (1971) noticed that Ervum is the most primitive section, then Cracca, while Vicia and Faba are the most advanced ones . Vicia species, mostly annual and perennial, occur most frequently in grassy, hedge row and wood-land habitats, often in maritime and montane regions, on calcareous and slightly acid soils . They have many horticultural uses. The field bean, V faba and V sativa are both used as green manure, being effective in nitrogen fixation (Huxley 1992). The genus is represented in the Egyptian wild flora by about 16 species (El-Hadidi and Fayed 1995).The chromosomes reveal the full range of cytogenetical possibilities for understanding the delimitation, affinities and evolution of taxa (Moore 1978). Karyotype studies were principally based on the idea that symmetrical karyotypes are more primitive than asymmetrical ones; longer chromosomes than shorter ones; median centromeres with chromosome arms of equal length were more primitive than chromosomes with arms of unequal length; low basic numbers had given rise to higher ones. These features are based on the comparison between karyotypes of known relative antiquity, as determined through classical taxonomy (Sharma 1990).A number of karyological studies have been carried out on some species of Vicia, Holmquist et al. Chromosomes numbers vary from 2n= 10, 2n=12 to 2n=14. More than 55 species of the

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“…included all the species formerly of the section Ceratotropis in the genus Phase olus e. g. P. aureus, P. mungo, P. calearatus, P. aconitifolius etc. Different workers worked on the cytological (Karpechenko, 1925;Frahm-Leliveld, 1953;Krishnan and De, 1965;Bhattacharya, 1978Bhattacharya, , 1979Dana, 1980;Sarbhoy, 1980;Lavania and Lavania, 1982;Sen and Bhattacharya, 1984) and pollen morphological (Vishun-Mittre and Sharma, 1962;Dnyansagar and Thomas, 1970;Deshpande and Bhasin, 1974) aspects of Phaseolus and Vigna. In view of the fact that dispute exists in the delimitation between the genera Phaseolus and Vigna, no detailed availability of cytomorphological data of these two genera and ready avilability of the materials in India provided scopes for cytological work along with pollen morphology.…”

mentioning

confidence: 99%