Desaturase Delta-6 Mrna Expressions In Highly Unsaturated Fatty Acids Biosynthesis Pathway During Follicle Maturation In Female Zebrafish (Danio Rerio)
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Date
2010-06
Authors
Ishak, Sairatul Dahlianis
Journal Title
Journal ISSN
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Publisher
Universiti Sains Malaysia
Abstract
Very little is known about the synthesis of unsaturated fatty acids such as eicosapentaenoic acid (EPA, C20:5n-3), docosahexaenoic acid (DHA, C22:6n-3) and arachidonic acid (ARA, C20:4n-6), or collectively known as the highly unsaturated fatty acids (HUFA), in the fish ovary although they play pivotal roles in this vertebrate reproduction. The zebrafish (Danio rerio) display capability to synthesize all three HUFA via pathways involving desaturation and elongation of two precursors, the linoleic acid (LA, C18:2n-6) and linolenic acid (LNA, C18:3n-3). In order to gain understanding on the importance and regulation of ovarian HUFA synthesis, this study shows the mRNA expression pattern of desaturase (fadsd6), an essential enzyme involved in HUFA biosynthesis pathway, in five different zebrafish ovarian follicle stages; pre-vitellogenic, early vitellogenic, late vitellogenic, maturation and ovulation stages. The mRNA levels of fadsd6 in different ovarian follicle stages were determined by semi-quantitative RT-PCR assays.
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Keywords
Desaturase Delta-6 Mrna Expressions , Follicle Maturation In Female Zebrafish (Danio Rerio)