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Seed protein and isozyme variations in Triticum tauschii (Aegilops squarrosa)

By: William, M.D.H.M.
Contributor(s): Mujeeb-Kazi, A [coaut.] | Peña-Bautista, R.J [coaut.].
Material type: materialTypeLabelArticlePublisher: 1993ISSN: 1432-2242 (Revista en electrónico).Subject(s): Aegilops AGROVOC | Genetic polymorphism AGROVOC | Genetic variation | Isoenzymes | Molecular weight | Triticum aestivum | GluteninsOnline resources: Access only for CIMMYT Staff In: Theoretical and Applied Genetics v. 87, no. 1-2, p. 257-263999842Summary: Sixty Triticum tauschii [Aegilops squarrosa] (2n = 2x = 14, DD) accessions were evaluated for variability of high-molecular-weight (HMW) glutenins, gliadins and isozymes of seed esterase, beta -amylase and glucose-phosphate isomerase. Wide variability was observed for HMW-glutenins and gliadins. The implications of unique HMW-glutenin alleles for quality parameters were discussed. Isozyme evaluations indicated more variability for the Est-Dt5 locus as compared to the Est-D5 of bread wheat. The polymorphism for beta -Amy-Dt1 was less than that of beta -Amy-D1. Similar to bread wheat, Gpi-Dt1 showed no polymorphism. The variability observed with the traits evaluated was observed in T. turgidum x T. tauschii synthetic hexaploids (2n = 6x = 42, AABBDD) suggesting that T. tauschii accessions may be a rich source for enhancing the genetic variability of bread wheat cultivars
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Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Staff Publications Collection Look under journal title (Browse shelf) 1 Available 999842
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Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752

Sixty Triticum tauschii [Aegilops squarrosa] (2n = 2x = 14, DD) accessions were evaluated for variability of high-molecular-weight (HMW) glutenins, gliadins and isozymes of seed esterase, beta -amylase and glucose-phosphate isomerase. Wide variability was observed for HMW-glutenins and gliadins. The implications of unique HMW-glutenin alleles for quality parameters were discussed. Isozyme evaluations indicated more variability for the Est-Dt5 locus as compared to the Est-D5 of bread wheat. The polymorphism for beta -Amy-Dt1 was less than that of beta -Amy-D1. Similar to bread wheat, Gpi-Dt1 showed no polymorphism. The variability observed with the traits evaluated was observed in T. turgidum x T. tauschii synthetic hexaploids (2n = 6x = 42, AABBDD) suggesting that T. tauschii accessions may be a rich source for enhancing the genetic variability of bread wheat cultivars

Global Wheat Program

English

R93ANALY|Springer|WP|1

INT0368

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