Summary
The transmission rate of trisomy was determined for two primary trisomic types, triplo-1 and triplo-3, of the self-incompatible species Lycopersicum peruvianum. Chromosome counts in somatic metaphases of root-tip squashes from 112 progeny plants showed that 8 individuals (7.2 %) were trisomic and 104 (92.8%) were diploid. The average frequency of transmission approximated 2.6% in triplo-1 and 8.6% in triplo-3. Data are presented on the karyotype and the morphological features of the 8 trisomics detected in the progenies of triplo-1 and triplo-3 and the various factors affecting the transmission rate of trisomy are discussed.
The transmission rate of trisomy was also determined for the trisomic plant 269 which displayed a complete deletion of the satellited part of chromosome 2 and was characterized by ovate fruits. Out of 18 progeny plants analysed, 8 (44.4%) were trisomic and 10 (55.6%) were diploid. Cytological and morphological analyses of the 8 trisomic individuals revealed that only two of them (11.1 %) resembled the parental trisomic. A number of diploid and trisomic progenies exhibited a partial or a complete deletion of the satellited segment of chromosome 2.
Similar content being viewed by others
Literature
Blakeslee, A.F.; Avery, A.G.: Fifteen — year breeding records of 2n + 1 types in Datura stramonium. Carnergie Inst. Wash. Publ. 501, 315–351 (1938)
Burnham, C.R.: Discussions in cytogenetics. 375pp. Burgess Minnepolis, Minnesota, 1962
Chen, C.C.; Grant, W.F.: Morphological and cytological identification of the primary trisomics of Lotus pedunculatus (Leguminosae). Canad. J. Genet. Cytol. 10, 161–179 (1968a)
Chen, C.C.; Grant, W.F.: Trisomic transmission in Lotus pedunculatus, Canad. J. Genet. Cytol. 10, 648–654 (1968b)
Dhillon, T.S.; Garber, E.D.: The genus Collinsia. X. Aneuploidy in C.heterophylla, Bot. Gaz. 121, 125–133 (1960)
Einset, J.: Chromosome length in relation to transmission frequency of maize trisomes. Genetics 28, 349–364 (1943)
Goodspeed, T.H.; Avery, A.G.: Trisomic and other types in Nicotiana sylvestris. J. Genet. 38, 381–458 (1939)
Hermsen, J.H.Th.: Basic information for the use of primary trisomics in genetic and breeding research. Euphytica 19, 135–140 (1970)
Hermsen, J.H.Th.; Wagenvoort, M.; Ramanna, M.S.: Aneuploids from natural and colchicine — induced autotetraploids of Solanum. Canad. J. Genet. Cytol. 12, 601–613 (1970)
Khush, G.S.: Cytogenetics of aneuploids, New York-London: Academic Press 1973
Mooring, J.S.: A cytogenetic study of Clarkia unguiculata II. Supernumerary chromosomes. Amer. J. Bot. 47, 847–854 (1960)
Rajhathy, T.: Trisomics of Avena strigosa. Canad. J. Genet. Cytol. 17, 151–166 (1975)
Rick, C.M.; Barton, D.W.: Cytological and genetical identification of the primary trisomics of the tomato. Genetics 39, 640–666 (1954)
Rick, C.M.; Butler, L.: Cytogenetics of the tomato. Adv. Genet. 8, 267–371 (1956)
Rick, C.M.; Notani, N.K.: The tolerance of extra chromosomes by primitive tomatoes. Genetics 46, 1231–1235 (1961)
Sree Ramulu, K.; Carluccio, F.; de Nettancourt, D.; Devreux, M.: Trisomics from triploid-diploid crosses in self-incompatible Lycopersicum peruvianum. I. Essential features of aneuploids and of self-compatible trisomics. Theor. Appl. Genet. 50, 105–119 (1977)
Tsuchiya, T.: Cytogenetic studies of trisomics in barley. Jap. J. Bot. 17, 177–213 (1960)
Tsuchiya, T.: Establishment of trisomic series in a two rowed cultivated variety of barley. Canad. J. Genet. Cytol., 9 667–682 (1967)
Author information
Authors and Affiliations
Additional information
Communicated by H.F. Linskens
This work has been supported by a contract between the European Communities and the CNEN. This publication is contribution n ° 484 from The Division Applicazioni delle Radiazioni del CNEN and contribution n ° 1482 from the Biology Radioprotection Medical Research programme of the Directorate General XII of the European communities
Rights and permissions
About this article
Cite this article
Sree Ramulu, K., Devreux, M., Carluccio, F. et al. Trisomics from triploid-diploid crosses in self-incompatible Lycopersicum peruvianum . Theoret. Appl. Genetics 51, 271–275 (1978). https://doi.org/10.1007/BF00274814
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00274814