Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9847
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dc.contributor.authorKarayucel, Ismihanen_UK
dc.contributor.authorEzaz, M Tariqen_UK
dc.contributor.authorKarayucel, Sedaten_UK
dc.contributor.authorMcAndrew, Brendanen_UK
dc.contributor.authorPenman, Daviden_UK
dc.date.accessioned2012-11-22T23:11:34Z-
dc.date.available2012-11-22T23:11:34Zen_UK
dc.date.issued2004-05-03en_UK
dc.identifier.urihttp://hdl.handle.net/1893/9847-
dc.description.abstractGynogenetic offspring from heterozygous red (Rr) Oreochromis niloticus females were produced by UV irradiation of sperm and suppression of the second meiotic division. The distance between the red gene and the centromere was estimated to be 4.8 cM. Of 547 gynogenetic offspring that survived to be sexed, 54 (9.9%) were males. There was a significant association between colour and sex -- 53 of the male fish were red and only one was wild type. These data provide evidence for genetic linkage between the red gene and a gene that can cause female-to-male sex reversal. Of several fully inbred XX clonal lines of O. niloticus previously developed in our laboratory, only one contained males. To test if this is caused by the same gene as the red-linked autosomal sex reversal gene, a series of test crosses was carried out. Males from this line were crossed to homozygous red females, then some of the offspring, which were all females, were backcrossed to the parental males. If the same gene was causing the presence of males in the gynogenetic offspring and in the clonal line, we would expect that in the backcrosses there would be more males in the wild type than in the red fish. However, the frequency of males was not significantly different between the red and wild-type fish (18/162=11.1% and 18/173=10.4% males, respectively), which leads to the conclusion that different unlinked loci are responsible for the presence of males in the clonal line and in the gynogenetics from the heterozygous red females.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationKarayucel I, Ezaz MT, Karayucel S, McAndrew B & Penman D (2004) Evidence for two unlinked "sex reversal" loci in the Nile tilapia, Oreochromis niloticus, and for linkage of one of these to the red body colour gene. Aquaculture, 234 (1-4), pp. 51-63. https://doi.org/10.1016/j.aquaculture.2003.12.016en_UK
dc.rightsThe 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.en_UK
dc.rights.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserveden_UK
dc.subjectOreochromis niloticusen_UK
dc.subjectNile tilapiaen_UK
dc.subjectsex determinationen_UK
dc.subjectsex reversalen_UK
dc.subjectlinkageen_UK
dc.titleEvidence for two unlinked "sex reversal" loci in the Nile tilapia, Oreochromis niloticus, and for linkage of one of these to the red body colour geneen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-04en_UK
dc.rights.embargoreason[karayuceletal_aquaculture_2004.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.identifier.doi10.1016/j.aquaculture.2003.12.016en_UK
dc.citation.jtitleAquacultureen_UK
dc.citation.issn0044-8486en_UK
dc.citation.volume234en_UK
dc.citation.issue1-4en_UK
dc.citation.spage51en_UK
dc.citation.epage63en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.author.emailb.j.mcandrew@stir.ac.uken_UK
dc.contributor.affiliationUniversity of Stirlingen_UK
dc.contributor.affiliationUniversity of Stirlingen_UK
dc.contributor.affiliationUniversity of Stirlingen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.identifier.isiWOS:000221069000004en_UK
dc.identifier.scopusid2-s2.0-1842866977en_UK
dc.identifier.wtid760912en_UK
dc.contributor.orcid0000-0001-7384-5133en_UK
dc.contributor.orcid0000-0001-8608-6631en_UK
dcterms.dateAccepted2004-05-03en_UK
dc.date.filedepositdate2012-11-02en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorKarayucel, Ismihan|en_UK
local.rioxx.authorEzaz, M Tariq|en_UK
local.rioxx.authorKarayucel, Sedat|en_UK
local.rioxx.authorMcAndrew, Brendan|0000-0001-7384-5133en_UK
local.rioxx.authorPenman, David|0000-0001-8608-6631en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2999-12-04en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filenamekarayuceletal_aquaculture_2004.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source0044-8486en_UK
Appears in Collections:Aquaculture Journal Articles

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