11901131

Source:http://linkedlifedata.com/resource/pubmed/id/11901131

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0010028, umls-concept:C0332120, umls-concept:C0796344, umls-concept:C1858460, umls-concept:C2587213, umls-concept:C2717855
pubmed:issue	3
pubmed:dateCreated	2002-3-19
pubmed:abstractText	Flow cytometry was used to assess the variability of endoreduplication in endosperms of maize inbred lines. Little variation was found between midwestern dent types, and high levels of endoreduplication were observed in popcorns. Endoreduplication is different between inbred lines by 13-18 days after pollination, and flow cytometric analysis of ploidy level was feasible until 20 DAP. To study the genetic regulation of endoreduplication, four inbreds were crossed to B73 and developing endosperms from both parental, reciprocal F(1), and backcross generations were subjected to flow cytometric analysis. Three measurements of endoreduplication were calculated from these data and analyzed as quantitative genetic traits. Multiple models of trait inheritance were considered including triploid, diploid, sporophytic maternal, and maternal and paternal zygotic nuclear inheritance. Maternal zygotic effects, often considered a form of parental imprinting, and maternal sporophytic effects were detected. To test the feasibility of introgressing a high endoreduplication phenotype into a midwestern dent inbred line, a backcross population was generated from B73 x Sg18. Parental and progeny endoreduplication levels were compared and heritabilities assessed. The heritabilities calculated from these data generally agree with the values calculated in the larger crossing experiments.
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-10047564, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-10794539, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-10864924, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-10999401, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-16593620, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-16667837, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-17246209, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-18464865, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-2155212, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-7624371, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-8122901, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-8824200, http://linkedlifedata.com/resource/pubmed/commentcorrection/11901131-9914201
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/0374636
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Mar
pubmed:issn	0016-6731
pubmed:author	pubmed-author:CoelhoCintiaC, pubmed-author:DanteRicardo ARA, pubmed-author:DilkesBrian PBP, pubmed-author:LarkinsBrian ABA
pubmed:issnType	Print
pubmed:volume	160
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	1163-77
pubmed:dateRevised	2010-9-14
pubmed:meshHeading	pubmed-meshheading:11901131-Analysis of Variance, pubmed-meshheading:11901131-Crosses, Genetic, pubmed-meshheading:11901131-Inbreeding, pubmed-meshheading:11901131-Models, Genetic, pubmed-meshheading:11901131-Polyploidy, pubmed-meshheading:11901131-Seeds, pubmed-meshheading:11901131-Zea mays
pubmed:year	2002
pubmed:articleTitle	Genetic analyses of endoreduplication in Zea mays endosperm: evidence of sporophytic and zygotic maternal control.
pubmed:affiliation	Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA.
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't