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Male sexual development and the androgenic gland: novel insights through the de novo assembled transcriptome of the eastern spiny lobster, Sagmariasus verreauxi
Citation
Chandler, JC and Aizen, J and Elizur, A and Battaglene, SC and Ventura, T, Male sexual development and the androgenic gland: novel insights through the de novo assembled transcriptome of the eastern spiny lobster, Sagmariasus verreauxi, Sexual Development, 9, (6) pp. 338-354. ISSN 1661-5425 (2016) [Refereed Article]
Copyright Statement
Copyright 2016 S. Karger AG, Basel
Abstract
The Eastern spiny lobster, Sagmariasus verreauxi, is commercially important in fisheries, with growing aquaculture potential, driving an interest to better understand male sexual differentiation. Amongst the Decapoda, the androgenic gland (AG) and the insulin-like androgenic gland hormone (IAG) have a well-defined function in male sexual differentiation. However, IAG is not a sex determinant and therefore must be considered as part of a broader, integrated pathway. This work uses a transcriptomic, multi-tissue approach to provide an integrated description of male-biased expression as mediated through the AG. Transcriptomic analyses demonstrate that IAG expression is stage- and eyestalk-regulated (low in immature, high in mature and 6-times higher in hypertrophied glands), with IAG being the predominant AG-specific factor. The low expression of this key factor in immature males suggests the involvement of other tissues in male sexual differentiation. Across tissues, the gonad (87.8%) and antennal gland (73.5%) show the highest male-biased differential expression of transcripts and also express 4 sex-determination regulators, known as Dmrts, with broader expression of Sv-Sxl and Sv-TRA-2. In order to better understand male sexual differentiation, tissues other than the AG must also be considered. This research highlights the gonad and antennal gland as showing significant male-biased expression patterns, including the Sv-Dmrts.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | androgenic gland, decapod, DM-domain, Dmrt, insulin-like androgenic gland hormone, male-biased expression, sexual development |
| Research Division: | Biological Sciences |
| Research Group: | Genetics |
| Research Field: | Developmental genetics (incl. sex determination) |
| Objective Division: | Environmental Management |
| Objective Group: | Marine systems and management |
| Objective Field: | Marine biodiversity |
| UTAS Author: | Battaglene, SC (Associate Professor Stephen Battaglene) |
| ID Code: | 115076 |
| Year Published: | 2016 |
| Web of Science® Times Cited: | 20 |
| Deposited By: | Fisheries and Aquaculture |
| Deposited On: | 2017-03-07 |
| Last Modified: | 2017-11-06 |
| Downloads: | 0 |
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