STORRE
STORRE: Stirling Online Research Repository
http://hdl.handle.net/1893/10036| Appears in Collections: | Aquaculture Journal Articles |
| Peer Review Status: | Refereed |
| Title: | Spontaneous diploidization of the maternal chromosome set in Nile tilapia (Oreochromis niloticus L.) eggs |
| Author(s): | Ezaz, M Tariq McAndrew, Brendan Penman, David |
| Contact Email: | b.j.mcandrew@stir.ac.uk |
| Keywords: | gynogenesis diploidization Nile tilapia Oreochromis niloticus |
| Issue Date: | 26-Feb-2004 |
| Date Deposited: | 7-Nov-2012 |
| Citation: | Ezaz MT, McAndrew B & Penman D (2004) Spontaneous diploidization of the maternal chromosome set in Nile tilapia (Oreochromis niloticus L.) eggs. Aquaculture Research, 35 (3), pp. 271-277. https://doi.org/10.1111/j.1365-2109.2004.01010.x |
| Abstract: | Spontaneous diploidization of the maternal chromosome set (SDM) in Oreochromis niloticus is described here for the first time. The SDM phenomenon was observed in progeny of only one XY neofemale out of 11 such neofemales from which eggs had been fertilized with UV-irradiated sperm: this treatment produced only the expected haploid embryos from the other females. SDM progeny were produced from three different batches of eggs from this female. No significant differences in survival at different stages of embryonic development were observed between the SDM and the diploid control group. The maternal inheritance of SDM progeny was verified using multilocus DNA fingerprinting. Only diploid karyotypes were observed in these fish and diploid control groups. In both the SDM and control groups, sex ratios were significantly skewed towards males (93.3% and 65.0% males respectively). The actual mechanism of SDM in eggs from this particular female remains unknown. |
| DOI Link: | 10.1111/j.1365-2109.2004.01010.x |
| Rights: | The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. |
| Licence URL(s): | http://www.rioxx.net/licenses/under-embargo-all-rights-reserved |
| File | Description | Size | Format | |
|---|---|---|---|---|
| ezazetal_AR_2004.pdf | Fulltext - Published Version | 223.36 kB | Adobe PDF | Under Embargo until 2999-12-27 Request a copy |
Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.
This item is protected by original copyright |
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved https://creativecommons.org/publicdomain/zero/1.0/
If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.