Abstract
Frequency and position of chiasmata at diplotene were studied in pollen mother cells and megaspore mother cells of the same plants of two wild Allium species (A. consanquineum and A. kachrooi) and two cultivated species (a. cepa and A. nigrum), all diploid with 2n=16. Contrary to most reports on sex differences in recombination, chiasma frequencies were higher in male than in female meiosis in all cases. Chiasmata were non-localised except in A. kachrooi megaspore mother cells where they were proximally localised.
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Barlow, P.W., Vosa, C.G.: The effect of supernumerary chromosomes on meiosis in Pushkinia libanotica (Liliaceae). Chromosoma (Berl.) 30, 344–355 (1970)
Fogwill, M.: Differences in crossing over and chromosome size in the sex cells of Lillium and Fritillaria. Chromosoma (Berl.) 9, 493–504 (1958)
Pastor, J.B., Callan, H.G.: Chiasma formation in spermatocytes and oocytes of the turbellarian Dendrocoelum lacteum. J. Genet. 50, 449–454 (1952)
Vaed Brat, S.: Genetic systems in Allium. II. Sex differences in meiosis. Chromosomes today 1, 31–40 (1966)
Vosa, C.G.: Two track heredity; Differentiation of male and female meiosis in Tulbaghia. Caryologia (Firenze) 25, 275–281 (1972)
Watson, J.D., Callan, H.G.: The form of bivalent chromosomes in newt oocytes at first metaphase of meiosis. Quart. J. Microsc. Sci. 104, 281–295 (1963)
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Gohil, R.N., Kaul, R. Studies on male and female meiosis in Indian Allium . Chromosoma 77, 123–127 (1980). https://doi.org/10.1007/BF00329538
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DOI: https://doi.org/10.1007/BF00329538