Cereal Research Communications
Volume/Issue:
Volume 42: Issue 4
A new HMW-GS 1Bx23* containing an amino acid segment similar to collagen
Authors:
L. Wei

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S.G. BaiGrassland Station of Huangzhong County Xining 811600 China

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X.J. HouQinghai Normal University College of Biologic and Geographic Sciences Qinghai Xining 810001 China

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J.M. LiQinghai Normal University College of Biologic and Geographic Sciences Qinghai Xining 810001 China

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B. Zhang

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W.J. Chen

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D.C. Liu

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B.L. Liu

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H.G. Zhang

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Pages:
658–667
Online Publication Date:
15 Jun 2014
Publication Date:
01 Dec 2014
Article Category:
Research Article
DOI:
https://doi.org/10.1556/crc.2014.0012
Keywords:
Tibetan wheat cultivar; HMW-GS; Glu-Bx; allelic variation
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Among 20 awnless Tibetan wheat cultivars analyzed by SDS-PAGE, the migration rate of an HMW-GS in XM001584 and XM001593, named 1BX23*. was shown to be slightly faster than 1Bx6. and slower than Bx7. Its nucleotide sequence was isolated based on homology clones. In a phylogenetic tree of 1Bx genes, 1Bx23* was apparently clustered with 1Bx23. Compared with 1Bx23. eight single nucleotide replacements caused four single amino acid replacements in 1Bx23*. The deletion of “G” at base pair 1463 and insertion of “A” at 1509 bps induced a 42-nucleotide frame shift. “GQRQQAGQWQRPGQ” was replaced by “DKGNRQDNGNDRDK”. The new segment cannot be found in other HMW-GSs, and it is very similar to a segment found in collagen. Moreover, an 18-nucleotide deletion made 1Bx23* six amino acids shorter than 1Bx23. The cultivar XM001593 had 28 chromosomes, which signifies that it was tetraploid wheat, and that the new HMW-GS 1Bx23* cannot be used directly for breeding in common wheat.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170

 

 

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Cereal Research Communications
Language English
Size A4
Year of
Foundation		 1973
Volumes
per Year		 1
Issues
per Year		 4
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)

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