{"refrec":{"BRefID":16865,"RR":"<b>Beaumont, A.R.; Gosling, E.; Beveridge, C.M.; Budd, M.D.; Burnell, G.M.</b> (1985). Studies on heterozygosity and size in the scallop, <i>Pecten maximus</i>, <b><i>in</i></b>: Gibbs, P.E. (Ed.) <i>Proceedings of the 19th European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984.</i> pp. 443-453","BEntID":16865,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Gibbs, P.E. (Ed.) <i>Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984. European Marine Biology Symposia,</i> 19: pp. 443-453","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Beaumont, A.R.; Gosling, E.; Beveridge, C.M.; Budd, M.D.; Burnell, G.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Beaumont, A.R. <i>et al.</i>","Englishabstract":"Settlements of <i>Pecten maximus</i> were collected in Mulroy Bay, Ireland, during the summers of 1979,1980 and 1981 and each year-class was grown on separately in lantern nets on the west Coast of Ireland. In 1983, samples from each year-class were measured and scored at 6 enzyme loci (<i>Pgm, Gpi, Odh, Lap-I , Mdh-I and Mdh-2</i>) using starch gel electrophoresis. No significant differences in allele frequencies were observed at any loci between year-classes and phenotype proportions at all loci, except <i>Lap-I</i>, were in good agreement with Hardy-Weinberg expectations. A significant deficiency of heterozygotes was observed at the <i>Lap-I</i> locus in two of the year-classes. Individual heterozygosity at these loci was unrelated to shell length except in the case of the <i>GPI</i> locus in the 1980 year-class where homozygotes were significantly larger than heterozygotes, and the <i>Odh</i> locus in the 1981 year class where homozygotes were significantly smaller than heterozygotes. During 1982 and 1983, two families of <i>Pecten maximus</i> were reared at Menai Bridge, North Wales, U.K., until one year old. Offspring were measured and then typed at 6 enzyme loci (<i>Pgm, Gpi, Odh, Lap-I, Es-I</i> and <i>Pgd</i>). Phenotype proportions at all loci in both families did not differ significantly from Mendelian ratios except at the <i>Es-I</i> locus in one family. No correlation was observed between individual heterozygosity and size amongst the offspring from the two families. The lack of an observed relationship between size and heterozygosity in wild-type year-class cohorts, and also in single families is discussed in relation to observations on other bivalve species.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Studies on heterozygosity and size in the scallop, <i>Pecten maximus</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-08 01:30:39.393143","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1985,"MonPub":null,"DateUpdate":"2001-09-19","DateCreate":"2001-08-29","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16865,"PubliDate":1985,"Pagination":"443-453","XtraPublOfAnaID":null,"ISBN":"0-521-30294-3","Volume":"19","Issue":null,"BRefMon":16823,"BRefMonRR":"<b>Gibbs, P.E. (Ed.)</b> (1985). Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984. <i>European Marine Biology Symposia</i>, 19. Cambridge University Press: Cambridge. ISBN 0-521-30294-3. 541 pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":20275,"SerRR":"European Marine Biology Symposia.","StandardTitleSer":"European Marine Biology Symposia","ISSN":null,"AbbrevSer":null,"StandardTitleMon":"Proceedings of the Nineteenth European Marine Biology Symposium, Plymouth, Devon, UK, 16-21 September 1984","StartPage":443,"Pages":11,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Gibbs, P.E. 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