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<DIV class=articleTitle>
<DIV id=productTitle class="citation articleInformationHeader" sizset="4"
sizcache="3" xmlns="http://www.w3.org/1999/xhtml">Journal of the World
Aquaculture Society</DIV>
<DIV class=articleDetails sizset="4" sizcache="3"><A
href="http://onlinelibrary.wiley.com/doi/10.1111/jwas.2011.42.issue-6/issuetoc"
shape=rect><FONT color=#000000><SPAN id=volumeNumber>Volume 42</SPAN>, <SPAN
id=issueNumber>Issue 6</SPAN>, </FONT></A><SPAN id=issuePages>pages
888–898</SPAN>, <SPAN id=issueDate>December 2011</SPAN></DIV>
<DIV class=articleDetails sizset="4" sizcache="3"><SPAN>
<DIV id=publishedOnlineDate class="citation articleInformationHeader" sizset="4"
sizcache="3" xmlns="http://www.w3.org/1999/xhtml">Article first published
online: 2 DEC 2011</DIV>
<DIV id=doi>DOI: 10.1111/j.1749-7345.2011.00521.x</DIV></SPAN></DIV></DIV>
<DIV class=articleTitle> </DIV>
<DIV class=articleTitle><FONT size=4>Mating Systems and Reproductive Success in
Hermaphroditic Bay Scallop, <EM>Argopecten irradians irradians</EM> (Lamarck
1819), Inferred by Microsatellite-based Parentage Analysis</FONT></DIV>
<DIV id=cr1 class="citation articleInformationHeader" sizset="4" sizcache="3"
xmlns="http://www.w3.org/1999/xhtml">Ronghua Li, Qi Li</DIV>
<DIV>Key Laboratory of Mariculture Ministry of Education, Ocean University of
China, Qingdao, China</DIV>
<DIV id=additionalInformation class="citation articleInformationHeader"
sizset="4" sizcache="3" xmlns="http://www.w3.org/1999/xhtml">
<DIV style="CLEAR: left">
<DIV id=authorsDetail jQuery1322861794754="9">
<P id=correspondence><SPAN><STRONG>Abstract</STRONG></SPAN></P>
<P><SPAN></SPAN>In this study, we used microsatellite-based parentage analysis
to assess the mating system of a mass spawning bay scallop, <EM>Argopecten
irradians irradians</EM>. Parental assignment was performed on 237 offspring and
14 candidate parents. Overall, 95% of all offspring were unambiguously allocated
to their putative parents based on information from six highly polymorphic loci.
Offspring from both the self-fertilization and cross-fertilization style were
observed, the large variation of self-fertilization rate among individuals
displays a mixed mode of mating. The high variances in reproductive success
resulted in a decline in effective breeding numbers (<EM>N</EM><SUB><FONT
size=1>b</FONT></SUB><EM>/N</EM> = 0.71). </P>
<P>The self-fertilization rate was 32.89% for this mass spawning and the
coefficient of inbreeding was estimated at around 16.5% per generation. When
selfed larvae were removed, the relationship between relatedness and individual
reproductive success was proved insignificant between half-sibings and
unrelated, which suggest that selection pressures other than avoidance of
inbreeding may be responsible for the evolution and maintenance of the
self-compatible mating system of <EM>A. i. irradians</EM>. These results lend
insight to <EM>A. i. irradians</EM> cultivation in present China and provide a
genetic basis for the development of more effective spawning
techniques.</P></DIV></DIV></DIV></FONT><BR>
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