A chromosomal study on damong maria, Artemisia vulgaris (Angiospermeae : Compositae).

Date

3-1986

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Liwayway M. Engle

Abstract

The study provided information on Damong Maria, Ar te mi si a v ul ga ri s collected from U.P. Los Baños. It reposed a new chromosome number of n=17 which must have arose from n=18 by loss of a chromosome. Previous studies of plant material from Baguio showed n=8. Polyploids are more adapted tolower altitude while diploid plants are more adapted to higher elevation. A. vu l gar is has a sticky metaphase I and Anaphase I. Sticky bridges and unequal distribution of dyads were observed at naphase I. Univalent laggards and bridge configuration were observed at Telophase I. These abnormalities however were observed in relatively low frequency. Meiosis was normal resulting in 90% pollen fertility. The presence of few multivalents and the presence of regular bivalent formation (98%) suggest that the tetraploid A. v ul ga ri s is a segmental all opolyploid.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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