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| Tong,Chunfa; Zhang,Bo; Li,Huogen; Shi,Jisen. |
| Statistical methods for mapping quantitative trait loci (QTLs) in full-sib forest trees, in which the number of alleles and linkage phase can vary from locus to locus, are still not well established. Previous studies assumed that the QTL segregation pattern was fixed throughout the genome in a full-sib family, despite the fact that this pattern can vary among regions of the genome. In this paper, we propose a method for selecting the appropriate model for QTL mapping based on the segregation of different types of markers and QTLs in a full-sib family. The QTL segregation patterns were classified into three types: test cross (1:1 segregation), F2 cross (1:2:1 segregation) and full cross (1:1:1:1 segregation). Akaike's information criterion (AIC), the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Full-sib family; Interval mapping; Model selection; Quantitative trait locus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400013 |
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| Souza,Fabio Ricardo Pablos de; Vozzi,Pedro Alejandro; Vila,Reginaldo Aparecido; Boligon,Arione Augusti; Galerani,Marli Aparecida Vani; Lobo,Raysildo Barbosa; Martelli,Lucia Regina. |
| MUC1 is a heavily glycosylated mammalian transmembrane protein expressed by mucosal secretory tissues for both protection against microbial infection and lubrication. An important characteristic of MUC1 is its variable number of tandem repeats (VNTR) containing several sites for O-glycosylation. VNTR length has been associated with many human diseases and with certain economically important traits in domestic ruminants. The aim of the present study was to correlate the length of MUC1 gene VNTR with expected progeny differences (EPDs) obtained for growth, fertility and carcass traits. Five alleles were identified, with alleles containing short VNTRs being more frequent than those with long, thereby demonstrating that Brazilian Nelore cattle are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Molecular marker; Productive traits; Quantitative trait locus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100013 |
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| Deng,Mei; Wu,Fangkun; Zhou,Wanlin; Li,Jing; Shi,Haoran; Wang,Zhiqiang; Lin,Yu; Yang,Xilan; Wei,Yuming; Zheng,Youliang; Liu,Yaxi. |
| Abstract Total spikelet number per spike (TSS) is one of the key components of grain yield in wheat. Chromosome (chr.) 2D contains numerous genes that control TSS. In this study, we evaluated 138 F8 recombinant inbred lines (RILs) derived from an F2 population of a synthetic hexaploid wheat line (SHW-L1) and a common wheat cultivar (Chuanmai 32) for TSS in six different environments. To identify quantitative trait loci (QTL) for TSS, we constructed an integrated high-density genetic map of chr. 2D containing two simple sequence repeats, 35 diversity array technology markers, and 143 single nucleotide polymorphisms. We identified three stable QTL for TSS that individually explained 9.7–19.2% of the phenotypic variation and predicted 23 putative candidate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recombinant inbred line; Synthetic hexaploid wheat; Quantitative trait locus; Total spikelet number per spike. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400603 |
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