Summary
Maize was crossed with sorghum, Tripsacum and millet with the aim of introgressing desirable alien characteristics into maize. The products of crosses were analyzed as to their level of differentiation following pollination; their further development on artificial culture medium was compared. In spite of a stimulation rate close to 5%, no evidence of hybridization between maize and sorghum or millet could be obtained. The plants recovered proved to be of maternal origin. However, with an appreciable frequency, stimulation leading to hypertrophic growth of nucellar tissue was observed. This phenomenon is bound to pollination, never occurring in non-pollinated ears. In crosses involving Tripsacum, more than 140 true hybrids were isolated. The influence of the genotypes used as well as factors such as climatic conditions or in vitro techniques are discussed. Except for one haploid maize plant, all the plants recovered proved to be classical hybrids, most of them showing the expected complement of chromosomes from each parent (10 + 36 chromosomes), a few others being slightly hyperploid (2n = 47 to 50 chromosomes). No non-classical hybrids constituted by a nonreduced female gamete and a reduced male gamete were obtained.
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References
Anand SC, Leng ER (1964) Genome relationships in some species of Tripsacum. Cytologia 29:324–329
Bernard S (1977) Etude de quelques facteurs contribuant à la réussite de l'androgénèse par culture d'anthères in vitro chez le Triticale hexaploïde. Ann Amelior Plant 28:639–655
Blaydes DF (1966) Interaction of kinetin and various inhibitors in the growth of soybean tissue. Physiol Plant 19: 748–753
Chaganti RSK (1965) Cytogenetic studies of maize × Tripsacum hybrids and their derivatives. PhD Thesis, Bussey Institute, Harvard University Publ, Cambridge
CIMMYT report on maize improvement (1976/77), pp 90–92
CIMMYT report on maize improvement (1978/79), pp 127–130
De Wet JMJ, Engle LM, Grant CA, Tanaka ST (1972a) Cytology of maize × Tripsacum introgression. Am J Bot 59:1026–1029
De Wet JMJ, Harlan JR, Lambert RJ, Engle LM (1972b) Introgression from Tripsacum into Zea and the origin of maize. Caryologia 25:25–31
De Wet JMJ, Gupta SC, Harlan JR, Grassl CO (1976) Cytogenetics of introgression from Saccharum into Sorghum. Crop Sci 16:568–572
Dhaliwal S, King PJ (1978) Direct pollination of Zea mays ovules in vitro with Z. mays, Z. mexicana and Sorghum bicolor pollen. Theor Appl Genet 53:43–46
Farquharson LI (1957) Hybridization in Tripsacum and Zea. J Hered 48:295–299
Fedak G (1980) Production, morphology and meiosis of reciprocal barley-wheat hybrids. Can J Genet Cytol 22:117–123
Fedak G, Nakamura C (1982) Chromosomal instability in a hybrid between Hordeum vulgare and Secale vavilovii. Can J Genet Cytol 24:207–212
Galinat WC (1961) Tripsacum floridanum crosses readily with corn. Maize Gen Coop Newslett 36:18–19
Galinat WC (1971) The origin of maize. Ann Rev Genet 5:447–478
Islam AKMR, Shepherd KW (1980) Meiotic restitution in wheat × barley hybrids. Chromosoma 76:363–373
James J (1978) Maize × sorghum. Maize Gen Coop Newslett 52:12–13
James J (1979a) New maize × Tripsacum hybrids for maize improvement. Euphytica 28:239–247
James J (1979b) New types of maize × Tripsacum and maize × sorghum hybrids. Their use in maize improvement. In: Proc 10th Meeting Maize and Sorghum Section of Eucarpia, Varna, pp 120–124
James J (1981) Chromosomal and cytoplasmic manipulations. In: Frey K (ed) Plant Breeding Symp. Iowa State University Press, Dubuque, pp 138–139
Jewell DC, Mujeeb-Kazi A (1982) Unexpected chromosome numbers in back-cross — 1 generations of F1 hybrids between Triticum aestivum and related alien genera. Wheat Inf Serv 55:5–9
Mangelsdorf PC (1974) Corn and its origin, evolution and improvement. The Belknap Press of Harvard University Press, Cambridge Mass, USA
Mangelsdorf PC, Reeves RG (1931) Hybridization of maize, Tripsacum and Euchlaena. J Hered 22: 329–343
Mangelsdorf PC, Reeves RG (1939) The origin of Indian corn and its relatives. Tex Agric Exp Stn, Bull 574
Mujeeb-Kazi A, Rodriguez R (1983) Meiotic instability in Hordeum vulgare × Triticum aestivum hybrids, and cytological variations in back-cross progenies with T. aestivum. J Hered 74:292–296
Murashige T, Skoog F (1962) A revised medium for rapid growth and bio assays with tobacco tissue culture. Physiol Plant 15:473–497
Nitsch JP, Nitsch C (1969) Haploid plants from pollen grains. Science 163:85–87
Petrov DF, Belousova NI, Fokina ES, Yatsenko RM, Laykova LI (1971) Inheritance of apomixis in the hybrids of maize with Tripsacum. Dokl Akad Nauk SSSR 201:961–963
Randolf LF (1950) Crossability of maize and Tripsacum in relation to theories of origin of maize. In: Proc 7th Int Bot Congr. Stockholm, pp 179–180
Reger BJ, James J (1982) Pollen germination and pollen tube growth of sorghum when crossed to maize and pearl millet. Crop Sci 22:140–144
Singh TSN (1954) Chromosome number in sugarcane × sorghum hybrids. Indian J Agric Sci 4:1050
Taira KS, Larter EN (1978) Factors influencing development of wheat-rye hybrid embryos in vitro. Crop Sci 18: 248–350
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Bernard, S., Jewell, D.C. Crossing maize with sorghum, Tripsacum and millet: the products and their level of development following pollination. Theoret. Appl. Genetics 70, 474–483 (1985). https://doi.org/10.1007/BF00305979
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DOI: https://doi.org/10.1007/BF00305979