Abstract
S. integrifolium (2n = 24) can easily be crossed as the pistillate parent with S. melongena (2n = 24) and S. melongena var. insanum (2n = 24). However, crosses in the other direction do not succeed. Both hybrids are vigorous. Chromosome association at diakinesis and metaphase I was studied. Chromosome associations higher than bivalents were observed in the hybrids indicating structural repatterning of chromosomes. The modal chromosome association in hybrids was twelve bivalents per PMC. This is suggestive of the retention of ancestral chromosome homeologies by the taxa concerned. Despite regular meiosis both hybrids were highly pollen-sterile (about 95%), which was attributed to segregational events of the recombined chromosomes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bhadhuri, P. N., 1951. Interrelationships of nontuberiferous species of Solanum with some consideration on the original of brinjal, S. melongena. Indian J. Genet Pl. Breed. 11: 75–82.
Gamble, G. S., 1957, ‘Solanaceae’. In; Flora of the presidency of Madras. Bot. Surv. India, Calcutta, Vol. II.
Kirti, P. B. & Rao, B. G. S., 1978. Meiosis in the interspecific hybrid of two spinous Solanums and its bearing on their affinities. Curr. Sci. 47: 696–697.
Kirti, P. B. & Rao, B. G. S., 1980. Chromosome pairing in reciprocal hybrids of S. integrifolium and S. indicum var. multiflora. Caryologia 33: 289–294.
Magoon, M. L., Ramanujam, S. & Cooper, D. C., 1962. Cytogenetical studies in relation to the origin and differentiation of species in the genus Solanum L. Caryologia 15: 151–252.
Rajasekaran, S. & Sivasubramanian, V., 1971. Cytological studies on the F1 hybrid of Solanum zuceagnianum Dunn×S. melongena L. Theor. appl. Genet. 41: 85–86.
Reayatkhan, Rao, G. R. & Bakshi, Shamim, 1978. Cytogeneties of Solanum integrifolium and its possible use in egg plant breeding. indian J. Genet. Pl. Breed. 38: 343–347.
Solomon, M. S. & Crane, F. A., 1969. Polygene implication in the biogenesis of alkaloids. Proc. Am. Soc. Pharmac. 16th A. Mtg.
Tatebe, T., 1939. Genetie and cytological studies on the F1 hybrid of scariet or tomato egg plant (Solanum integrifolium Poir)× egg plant (Solanum melongena L.). Bot. Mag., Tokyo 50: 457–462.
Veerabhadra Rao, S., 1977. Studies on the erossability relationships of some spinous solanums. Unpublished Ph.D. thesis, Andhra Univ., Waltair.
Veerabhadra Rac, S. & Rao, B. G. S., 1977a. Sereening of flowers in interspecific crosses of some spinous Solanum species. Curr. Sci. 46: 123–124.
Veerabhadra Rao, S. & Rao, B. G. S., 1977b. Chromosome pairing in Solanum surattense×S. meiongena F1 heterozygote. Curr. Sci. 46: 124–125.
Veerabhadra Rao, S. & Rao, B. G. S., 1977c. Chromosomal repatterning in the differentiation of two spinous Solanums. Curr. Sci. 46: 458–459.
Zutshi, U., 1966. A note on the transference of Solosodine from Solanum incanum to S. melongena. Curr. Sci. 17: 439.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kirti, P.B., Rao, B.G.S. Cytological studies on F1 hybrids of Solanum integrifolium with S. melongena and S. melongena var. insanum . Genetica 59, 127–131 (1982). https://doi.org/10.1007/BF00133296
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00133296