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Some intergeneric hybrids in the Triticeae

By: Contributor(s): Material type: ArticleArticleLanguage: English Publication details: Hungary : Akadémiai Kiadó, 1980.ISSN:
  • 0133-3720
  • 1788-9170 (Online)
Subject(s): Online resources: In: Cereal Research Communications v. 8, no. 3, p. 469-475604977, 612293Summary: Intergeneric hybrids obtained in CIMMYT between some Triticeae were cytogenetically analyzed, and are discussed. A few possessed the maternal euploid composition, devoid of any detectable alien chromosomes. Other plants had the somatic counts expected from the cross-combinations. Hordeum vulgare x Triticum aestivum hybrids with a chiasmata frequency range of 2.47 to 2.63 per cell suggest homoeologous chromosome pairing. T. aestivum x Elymus giganteus had a mean of 1.2 rod bivalent fomation. The H. vulgare x Elymus (S2S2H2H2H3H3, 2n=6x=42) hybrid with a lesser than expected mean chiasmata frequency (4.77) suggests an evaluation of the pairing relationships amongst the HH2H3 genomes. Backcross progeines were obtained in a few hybrids assisted by post-pollination gibberellic acid (75 ppm) application.
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Holdings
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-528 (Browse shelf(Opens below)) 1 Available 604977
Article CIMMYT Knowledge Center: John Woolston Library CIMMYT Staff Publications Collection CIS-528 (Browse shelf(Opens below)) 2 Available 612293
Total holds: 0

Peer review

Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0133-3720

Tables, literature cited p. 475

Intergeneric hybrids obtained in CIMMYT between some Triticeae were cytogenetically analyzed, and are discussed. A few possessed the maternal euploid composition, devoid of any detectable alien chromosomes. Other plants had the somatic counts expected from the cross-combinations. Hordeum vulgare x Triticum aestivum hybrids with a chiasmata frequency range of 2.47 to 2.63 per cell suggest homoeologous chromosome pairing. T. aestivum x Elymus giganteus had a mean of 1.2 rod bivalent fomation. The H. vulgare x Elymus (S2S2H2H2H3H3, 2n=6x=42) hybrid with a lesser than expected mean chiasmata frequency (4.77) suggests an evaluation of the pairing relationships amongst the HH2H3 genomes. Backcross progeines were obtained in a few hybrids assisted by post-pollination gibberellic acid (75 ppm) application.

Text in English

MIC 8223-R|3

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