MEIOSIS IN F1 INTERSPECIFIC HYBRID OF SOLANUM | BIONATURE

During meiosis, cytogenetic tests were performed on an F1 seedless hybrid created from a cross between Solanum macrocarpon L. and Solanum aethiopicum L. The hybrid was discovered to be monosomic, having a chromosomal number of 2n–1 = 23. The aneuploid nature of the hybrid, (2) the precocious movement of the odd chromosome at anaphase I, followed by the precocious separation and movement of the two chromatids of this chromosome at anaphase II, when they either move into the same gamete or into different gametes, and (3) the presence of multivalent association of chromosomes at diakinesis, could all contribute to the total failure of sced production.

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