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Chapter 451

Origin and differentiation of tetraploid species in the section Polyeides of the genus Aegilops. IV. Cytogenetical analysis of B1 plants obtained from F1 (Ae. variabilis X Ae. columnaris) X Ae. variabilis

Furuta, Y.

Japanese Journal of Genetics Idengaku Zasshi 51(6): 403

1976


Accession: 000450511

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F1 development in the cross between Ae. variabilis (CuSv) and Ae. columnaris (CuMc) was satisfactory. Chromosome pairing resulted in 8.29I + 9.03II + 0.47III + 0.06IV and pollen and seed fertility were respectively 21% and 0. The chromosome numbers of 79 BC1 plants were 28(28%), 29(27%), 30(16%), 31(19%), 32(8%), 33(1%) and 34(1%). From the pairing behaviour of BC1 plants with 28 chromosomes it was established that the female gamete in the back cross varied from the CuSv type to the CuMc type.

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