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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2006
pubmed:dateCreated
2007-3-16
pubmed:abstractText
High molecular weight glutenin subunit (HMW-GS) 1Bx23, an x-type subset encoded by Glu-B1p, which is only distributed in Triticum turgidum, was successfully transferred from hexaploid triticale to common wheat line SY95-71. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) shows that subunit 1Bx23 has a faster mobility than subunit 1Bx7 and 1Bx20, but slower than 1Bx17. Primers designed from the conserved regions in wheat HMW-GS gene promoter and coding sequences were used to amplify the genomic DNA of SY95-71. Total nucleotide sequences of 3426 bp including an open reading frame of 2385 bp and upstream sequence of 1038 bp were obtained. Compared with the reported gene sequences of Glu-B1-1 alleles, including 1Bx7, 1Bx14, 1Bx20 and 1Bx17, the promoter region of the 1Bx23 was displayed close to 1Bx7 and 1Bx17. The deduced amino acid sequence of coding region of 1Bx23 exhibited 34, 30, 20 and 22 amino acid substitutions from that of 1Bx14, 1Bx20, 1Bx7 and 1Bx17, respectively. A phylogenetic tree based on the nucleotide sequence alignment of the Glu-1Bx alleles shows that the 1Bx23 are apparently clustered with 1Bx7 and 1Bx17, and more ancient than 1Bx14 and 1Bx20, suggesting that the evolution speeds are different among Glu-1Bx genes. Additionally, the potential use of wheat line SY95-71 to further screen the quality contribution of unique subunit 1Bx23 is also discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1601-5223
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
159-66
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Molecular characterization of high molecular weight glutenin subunit allele 1Bx23 in common wheat introduced from hexaploid triticale.
pubmed:affiliation
School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China. yangzujun@uestc.edu.cn
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't