Thinophyrum bessarabicum: Biochemical and cytological markers for the detection of genetic introgression in its hybrid derivatives with Triticum aestivum L.
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ArticleLanguage: En Publication details: 1993ISSN: - 1432-2242 (Revista en electrónico)
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
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| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | Look under journal title (Browse shelf(Opens below)) | 1 | Available | 999850 |
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Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752
Thinopyrum bessarabicum [Elymus farctus subsp. bessarabicus] (2n = 2x = 14, JJ) with its unique property of salt tolerance provides a potential means for the transfer of this important and complex trait into cultivated wheat through intergeneric hybridization. To accomplish this, diagnostic markers for detecting the presence of T. bessarabicum chromosomes in a wheat background have to be established. The C-banded karyotype of T. bessarabicum distinctly identifies individual T. bessarabicum chromosomes and separates them from those of Triticum aestivum. Also, seven protein/isozymes, i.e., malate dehydrogenase, high-molecular-weight glutenin, superoxide dismutase, grain esterase, glutamate oxaloacetate transaminase [aspartate aminotransferase], beta -amylase and alpha -amylase, were identified as being positive markers specific to T. bessarabicum; these were also expressed in the T. aestivum/T. bessarabicum amphiploid. These diagnostic biochemical markers could be useful in detecting and establishing homoeology of T. bessarabicum chromosomes in T. aestivum/T. bessarabicum intergeneric hybrid derivatives
English
R93ANALY|Springer|1