Cytogenetics of Solanum melongena, Solanum aethiopicum and their F1 hybrid

Date

3-1996

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Dolores A. Ramirez

Co-adviser

Abella C. De la Viña

Abstract

This study aimed to determine the cytogenetic and phylogenetic relationship between the cultivated species, Solanum melongena ( DLP) and wild species, Solanum aethropicum, as indicated by the meiotic behaviour of the F, hybrid. Comparative meiotic chromosome cytology between Solanum melongena, Solanum aethlopicum and their F. hybrid were evaluated and all revealed a chromosome number of 2n=24. The occurrence of meiotic aberrations in the F, like laggards, early and late disjunctions, multivalents and asynchronous, bridge and bridge plus fragments formations were discussed. The irregular meiotic behaviour corroborated with the findings of pollen fertility as it showed a low percentage (9.74%) of pollen fertility in the F, hybrid. Considering the parental species belong to different sections in the subgenus Leptostemonum, nearly normal pairing in the F, was obtained, suggesting close affinity between the parental genomes which is paradoxical to the plant breeder and might even be conspicuous to a taxonomist.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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