Anterior development in the parthenogenetic and viviparous form of the pea aphid, Acyrthosiphon pisum: hunchback and orthodenticle expression
Resource
Insect Molecular Biology, 19(s2), 75-85
Journal
Insect Molecular Biology
Journal Volume
19
Journal Issue
s2
Pages
75-85
Date Issued
2010
Date
2010
Author(s)
Abstract
In the dipteran Drosophila, the genes bicoid and hunchback work synergistically to pattern the anterior blastoderm during embryogenesis. bicoid, however, appears to be an innovation of the higher Diptera. Hence, in some non-dipteran insects, anterior specification instead relies on a synergistic interaction between maternally transcribed hunchback and orthodenticle. Here we describe how orthologues of hunchback and orthodenticle are expressed during oogenesis and embryogenesis in the parthenogenetic and viviparous form of the pea aphid, Acyrthosiphon pisum. A. pisum hunchback (Aphb) mRNA is localized to the anterior pole in developing oocytes and early embryos prior to blastoderm formation - a pattern strongly reminiscent of bicoid localization in Drosophila. A. pisum orthodenticle (Apotd), on the other hand, is not expressed prior to gastrulation, suggesting that it is the asymmetric localization of Aphb, rather than synergy between Aphb and Apotd, that regulates anterior specification in asexual pea aphids.
SDGs
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
09.pdf
Size
23.43 KB
Format
Adobe PDF
Checksum
(MD5):d0ed5599e0ddfa16d85c3d14fe674c3f