Summary
Meiotic behaviour of haploid plants of Brassica nigra which arose parthenogenetically amongst the progeny of B. nigra × B. campestris, is described. The presence of two bivalents and s-s associations suggests the basic chromosome number w as six and the present x=8 number arose through the duplication of two of the original chromosomes.
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References
Catcheside, D. G., 1937. Secondary pairing in Brassica oleracea. Cytologia, Fuji Jub. Vol., 366–378.
Nwankiti O., 1971. Cytogenetic and breeding studies with Brassica. I. Cytogenetic experiments with Brassica napocampestris. Hereditas 66: 109–126.
Prakash, S., 1969. Production of superior amphidiploids of Brassica juncea Coss from different 20-chromosome species of Brassica and their evaluation to certain fungal diseases. Ph. D. Thesis, Aligarh Muslim Univ., India.
Prakash S. & A.Narain, 1971. Genomic status of Brassica tournefortii Gouan. Theor. Appl. Genet. 41: 203–204.
Ramanujam S., 1941. A haploid plant in toria (Brassica campestris L.). Proc. Ind. Acad. Sci., B, 14: 25.
Riley R. & V.Chapman, 1957. Haploids and polyhaploids in Aegilops and Triticum. Heredity 11: 195–208.
Röbbelen G., 1960. Beiträge zur Analyse des Brassica Genomes. Chromosoma 11: 205–228.
Thompson K. F., 1956. Production of haploid plants of marrow stem kale. Nature 178: 748.
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Prakash, S. Haploidy in Brassica nigra Koch . Euphytica 22, 613–614 (1973). https://doi.org/10.1007/BF00036663
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DOI: https://doi.org/10.1007/BF00036663