Karyotype of the egg chromosomes of an orb- weaving spider, L. argentina (van Hasselt) (Araneae : Araneidae)

Date

4-1994

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Adelina A. Barrion

Abstract

MA. CRISTINA L. MASCARENAS. University of the Philippines at Los Banos. April 1994.Karyotype of the Egg chromosomes of an orb weaving spider Leucauge argentine (van Hasselt) (Araneae:Araneidae).

ADVISER: DR. ADELINA A. BARRION

Egg masses collected from reared Leucauge argentine (van Hasselt) which were fixed in Carnoy's solution and stained with lacto-acetoorcein revealed the somatic chromosome number of the species as 2n=24. Arm ratio ranged from 1.11 to 3.63, thus classifying the chromosomes as median, submedian and subterminal. From the ten pre-metaphase cells, chromosome relative lengths were determined to range from 0.063 to 0.123. Mitosis was regular and normal. The mean mitotic index was 71.5%.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

This document is currently not available here.

Share

COinS