Abstract:
:In vitro DNA:DNA hybridizations and hydroxyapatite thermal-elution chromatography were employed to identify the diploid Triticum species ancestral to the B genome of T. turgidum. Unique and repeated sequences from the various Triticum species were separated by hybridization and thermal elution on hydroxyapatite. Unique- and repeated-sequence fractions of labeled T. turgidum var. durum DNA were hybridized to the corresponding fractions of unlabeled DNAs of T. searsii, T. speltoides, T. longissimum, T. sharonensis, and T. bicorne. Thermal stability profiles were constructed to evaluate base-sequence complementarity between T. turgidum var. durum and the diploid Triticum species. The heteroduplex thermal stabilities indicated that, of the five species examined, T. searsii was the most closely related to the B genome of T. turgidum var. durum. The thermal stability profiles further indicated that the repeated DNA fractions from the Triticum species are more similar than the unique-sequence fractions. This indicates that all of the Triticum species are very closely related and, in all probability, have diverged from a single progenitor species.
journal_name
Biochem Genetjournal_title
Biochemical geneticsauthors
Thompson JP,Nath Jdoi
10.1007/BF00502977subject
Has Abstractpub_date
1986-02-01 00:00:00pages
39-50issue
1-2eissn
0006-2928issn
1573-4927journal_volume
24pub_type
杂志文章abstract::Restriction endonuclease analyses of DNA from one Black G gamma A gamma-HPFH homozygote and four Black and one Indian G gamma A gamma-HPFH heterozygotes have identified three different HPFH types which are the result of large deletions including the delta and beta genes. Two of the types are comparable to those charac...
journal_title:Biochemical genetics
pub_type: 杂志文章
doi:10.1007/BF00499284
更新日期:1984-02-01 00:00:00
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journal_title:Biochemical genetics
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1982-06-01 00:00:00
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journal_title:Biochemical genetics
pub_type: 杂志文章
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journal_title:Biochemical genetics
pub_type: 杂志文章
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更新日期:1979-10-01 00:00:00
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journal_title:Biochemical genetics
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pub_type: 杂志文章
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更新日期:1989-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:1978-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:1980-08-01 00:00:00
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journal_title:Biochemical genetics
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pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
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更新日期:1977-04-01 00:00:00
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