Abstract
Psathyrostachys juncea (2n = 2x = 14, NN), a source of barley yellow dwarf (BYDV) virus resistance with tolerance to drought and salinity, has been successfully hybridized in its autotetraploid form (2n = 4x = 28, NNNN) as the pollen parent to durum wheat (Triticum turgidum L.). The 2n = 4x = 28 (ABNN) F1 hybrid has a mean meiotic metaphase-I configuration of 20.29 univalents + 0.29 ring bivalents + 3.36 rod bivalents + 0.14 trivalents. Spike length, internode length, glume awn length and lemma awn length, as well as the general spike morphology of the F1 hybrid, are intermediate with those of the two parents. Pollinating the ABNN F1 hybrid has given backcross (BC)-I derivatives of an amphiploid (AABBNN) that expresses limited self-fertility. BC-2 derivatives have been obtained from these plants. Direct transfers of useful genes from Ps. juncea to wheat would require substantial genetic manipulation strategies. Both conventional and novel methodologies, which may complement each other, and so facilitate reaching an agricultural objective end point, are addressed.
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References
Ahmad F, Comeau A (1990) Wheat x Pearl Millet hybridization: consequence and potential. Euphytica 50:181–190
Ahmad F, Comeau A (1991) Production, morphology, and cytogenetics of Triticum aestivum (L.) Thell x Elymus scabrus (R. Br.) Love intergeneric hybrids obtained by in ovulo embryo culture.Theor Appl Genet 81:833–839
Dewey DR (1984) The genomic system of classification as a guide to intergeneric hybridization with the perennial Triticeae. In: Gustafson JP (ed) Gene manipulation in plant improvement. 16th Stadler Genetics Symp, Plenum Press, New York, pp 209–279
Jahan Q, Ter-Kuile N, Hashmi N, Aslam M, Vahidy AA, Mujeeb-Kazi A (1990) The status of the 1B/1R translocation chromosome in some released wheat varieties and the 1989 candidate varieties in Pakistan. Pak J Bot 22:1–10
Jewell D, Mujeeb-Kazi A (1982) Unexpected chromosome numbers in backcross-I generations of F1 hybrids between Triticum aestivum and related alien genera. Wheat Inf Serv 55:5–9
Jensen KB, Zhang YF, Dewey DR (1990) Mode of pollination of perennial species of the Triticeae in relation to genomically defined genera. Can J Plant Sci 70:215–225
Laurie DA, Bennett MD (1988) The production of haploid wheat plants from wheat x maize crosses. Theor Appl Genet 76:393–397
Limin AE, Fowler TB (1990) An interspecific hybrid and amphiploid produced from Triticum aestivum crosses with Agropyron cristatum and Agropyron desertorum. Genome 33:581–584
McFadden ES, Sears ER (1946) The origin of Triticum spelta and its free-threshing hexaploid relatives. J Hered 37:81–89, 107–116
Mujeeb-Kazi A (1981) Apomictic progeny derived from intergeneric Hordeum-Triticum hybrids. J Hered 72:284–285
Mujeeb-Kazi A, Asiedu R (1990) Wide hybridization — potential of alien genetic transfers for Triticum aestivum improvement. In: Bajaj YPS (ed) Biotechnology in Agriculture and Forestry. Vol. 13 Wheat. Springer-Verlag, Berlin Heidelberg, pp 111–127
Mujeeb-Kazi A, Miranda JL (1985) Enhanced resolution of somatic chromosome constrictions as an aid to identifying intergeneric hybrids among some Triticease. Cytologia 50:701–709
Mujeeb-Kazi A, Roldan S, Suh DY, Sitch LA, Farooq S (1987) Production and cytogenetic analysis of hybrids between Triticum aestivum and some caespitose Agropyron species. Genome 29:537–553
Mujeeb-Kazi A, Roldan S, Suh DY, Ter-Kuile N, Farooq S (1989) Production and cytogenetics of Triticum aestivum L. hybrids with some rhizomatous Agropyron species. Theor Appl Genet 77:162–168
Mujeeb-Kazi A, Cortes A, Riera-Lizarazu O, Delgado R (1993) Polyhaploidy in the Triticeae mediated by crosses of Triticum species with Zea mays and Tripsacum dactyloides. In: 8th Int Wheat Genet Symp, Beijing, China (in press)
Ohkawa Y, Suenaga K, Ogawa T (1992) Production of haploid wheat plants through pollination of Sorghum pollen. Japan J Breed 42:891–894
Pienaar R de V (1990) Wheat x Thinopyrum hybrids. In: Bajaj YPS (ed) Biotechnology in Agriculture and Forestry. Vol. 13 Wheat. Springer-Verlag, Berlin Heidelberg, pp 167–217
Plourde A, Comeau A, Fedak G, St-Pierre CA (1989) Productioin and cytogenetics of hybrids of Triticum aestivum x Leymus innovatus. Theor Appl Genet 78:436–444
Plourde A, Fedak G, St-Pierre CA, Comeau A (1990) A novel intergeneric hybrid in the Triticeae: Triticum aestivum x Psathyrostachys juncea. Theor Appl Genet 79:45–48
Riera-Lizarazu O, Mujeeb-Kazi A (1993) Polyhaploid production in the Triticeae: wheat x Tripsacum crosses. Crop Sci 33:973–976
Sharma HC, Gill BS (1983) Current status of wide hybridization in wheat. Euphytica 32:17–31
Ushiyama T, Shimizu T, Kuwabara T (1991) High frequency of haploid production of wheat through intergeneric cross with Teosinte. Japan J Breed 41:353–357
Wang RRC (1989) Intergeneric hybrids involving pernennial Triticeae. Life Sci Adv 8:57–64
William MDHM, Mujeeb-Kazi A (1992) Isozyme and cytological markers of some Psathyrostachys juncea accessions. Theor Appl Genet 84:528–534
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Mujeeb-Kazi, A., Cortes, A. & Riera-Lizarazu, O. The cytogenetics of a Triticum turgidum x Psathyrostachys juncea hybrid and its backcross derivatives. Theoret. Appl. Genetics 90, 430–437 (1995). https://doi.org/10.1007/BF00221986
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DOI: https://doi.org/10.1007/BF00221986