Meiosis in balimbing Averrhoa carambola L. (Geremiales : Oxalidaceae)

Date

3-1993

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Merlyn S. MendioroS

Co-adviser

Sporocytes of Averrhoa carambola L. were studied to know its chromosome number and meiotic behavior behavior

Abstract

Sporocytes of Averrhoa carambola L. were studied to know its chromosome number and meiotic behavior behavior by using acetocarmine squash preparations. A. carambola has a chromosome number of 3n=24. At diakinesis 12II (74.24%), 11II (10.58%) and 10II + 41 (15.18%) were observed. The meiotic stages observed have normal cell frequencies during metaphase 1 (15.00%), anaphase 1 (62.26%), telophase 1 (82.62%), metaphase II (71.69%), anaphase II (58.80%) and telophase II (81.18%). At metaphase II (81.18%). At metaphase I, the most frequent abnormalities were laggards (21.40%). non-congression (16.26%) and early disjunction (8.34%). Anaphase I exhibited laggards (21.10%) and non congression (16.63%). Telophase I exhibited laggards (17.38%) Metaphase II exhibited non-congression of chromosome (28.31%). At anaphase II laggards (36.51%) and non-congression and non-congression (4.67%) were observed. Telophase II wxhibited only laggards (18.82%). Its pollen fertility was 60.21%

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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