Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species.

Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Research Abstract Details 

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Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Abstract Text:

W Li,Y Wan,Z Liu,K Liu,X Liu,B Li,Z Li,X Zhang,Y Dong,D Wang,

1Bx14 is a member of the high molecular weight (HMW) glutenin subunits specified by wheat Glu-B1-1 alleles. In this work, we found that the full-length amino acid sequence of 1Bx14 and 1Bx20, the last two of the three cysteine residues, which are conserved in 1Bx7, 1Bx17 and homologous 1Ax and 1Dx subunits, were replaced by tyrosine residues. In the 5' flanking regions (-900 to -1,200 bp relative to the start codon), a novel miniature inverted-repeat transposable element insertion was present in 1Bx12 and 1Bx20 but not 1Bx7 and 1Bx17. 1Bx14 and 1Bx20 like alleles were readily found in tetraploid wheat subspecies but not several S genome containing Aegilops species. Phylogenetic analysis showed that the four molecularly characterized Glu-B1-1 alleles (1Bx7, 1Bx14, 1Bx17, 1Bx20) could be divided into two allelic lineages. The lineage represented by 1Bx7 and 1Bx17 was more ancient than the one represented by 1Bx14 and 1Bx20. Combined, our data establish that 1Bx14 and 1Bx20 represent a novel subclass of Glu-B1-1 alleles. Based on current knowledge, potential mechanism involved in the differentiation of two Glu-B1-1 lineages is discussed.

Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Publishing Authors By Initials

W Li,Y Wan,Z Liu,K Liu,X Liu,B Li,Z Li,X Zhang,Y Dong,D Wang,

For similar plants: plant families and groups: angiosperms: poaceae: triticum research abstracts see: plants: plant families and groups: angiosperms: poaceae: triticum research

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Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: TAG. Theoretical and applied genetics. Theoretisch

VOLUME: 109

Page Numbers: 1093-104

Journal Abbreviation:

ISSN: 0040-5752

DAY: 15

MONTH: Sep

YEAR: 2004

Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Information

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LANGUAGE: eng

NlmUniqueID: 145600

Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Keywords Mesh Terms:

KEYWORDS: Triticum

MESH TERMS: genetics

Chemical & Substance for Abstract: Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species. Information

Substance Name: glutenin

Registry Number: 9061-41-0

Grant and Affiliation Information for Molecular characterization of HMW glutenin subunit allele 1Bx14: further insights in to the evolution of Glu-B1-1 alleles in wheat and related species.

AFFILIATION: Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.

Country: Germany

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MEDLINETA: Theor Appl Genet

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