IDENTIFICATION OF CHROMOSOMES INVOLVED IN TRANSLOCATION IN F1 HYBRID OF TWO SPECIES OF TETRAPLOID WHEAT

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Abstract
Triticum dicoccum var. Khapli has no detectable chromosomal resrrangement, whereas T. carthlicum P. I. No. 94756 has a reciprocal translocation involving chromosome 2B(H) and 3A(XH) if T. aestivum L. emend Thell. ssp. vulgare var. Chinese Spring is considered as having the standard arrangement. Degree of affinity between chromosomes 3A as well as between chromosomes 3B(III) of Chinese Spring and carthlicum is lower than expected between homologous chromosomes. The nature and extent of this diversion is such that, at present, degree of affinity between chromosomes 3A of Chinese Spring and 3B of carthlicum is higher than between chromosomes 3A and 3B of Chinese Spring and degree of affinity between chromosomes 3A of carthlicum and 3B of Chinese Spring is higher than between chromosomes 3A and 3B of carthlicum.

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