An intergeneric hybrid of Triticum aestivum L. X Elymus giganteus
Material type:
ArticleLanguage: English Publication details: United Kingdom : Oxford University Press, 1981.ISSN: - 0022-1503
- 1465-7333 (Online)
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | CIS-581 (Browse shelf(Opens below)) | 1 | Available | 604976 | |||
| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | CIS-581 (Browse shelf(Opens below)) | 2 | Available | 612226 |
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Illustrations, tables, references p. 256
The intergeneric hybrid of T. aestivum L. cv. Chinese Spring (2n = 6x = 42, AABBDD) with E. giganteus (2n = 4x = 28, JJXX) expressed a biparental phenotype. The hybrid was 2n = 5x = 35, with ABDJX somatic chromosomes that were meiotically represented as 32.8 univalents, 1.02 bivalents. The Triticum genomes maintained their specificity, and no autosyndetic pairing occurred between the J and X genomes. Meiotic restitution in the F1 and gibberellic acid treatment aided in production of T. aestivum — E. giganteus X T. aestivum backcross-1 seed. These were of the AABBDDJX (2n = 8x = 56) genomic composition, although one BC1 plant possessed 55 chromosomes. BC2 seed have been produced and await cytological identification. The role of Chinese Spring in intergeneric crossability is discussed.
Text in English
8224-R|Oxford|3
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