Karyotype analysis of pansit- pansitan, Peperomia pellucida (L.) H.B.K.

Date

3-1990

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Ludivina S. De Padua

Abstract

P. pellucida (L.) H.B.K. though a common weed, is a potential economic and medicinal plant. Thus, a cytological study of this plant is a significant step which would lead towards the improvement of this species. By using the acetocarmine squash technique, this study aimed to determine the chromosome number found in U.P.L.B. as well as delineate its chromosomal traits. Results from the karyotype analysis showed that three groups of chromosomes exist: chromosomes with median, submedian and subterminal centromeres. Majority of the chromosomal pairs possess median centromeres. Classification was based on the nomenclature of the centromeric position proposed by Levan et al (1964). Moreover, somatic cells of the plant were found to exhibit an erratic chromosome number and they varied from 2n = 28, 34, 36, 40 to 44. Among the numbers obtained 2n = 36 and '10 occurred the most frequent. The mitotic index of the cells was 13.18% indicating the limited number of dividing cells.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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