Abstract:
:Prolamin mixtures were isolated from oats, rice, normal and high-lysine sorghum, two varieties of pearl millet, two strains of teosinte, and gamma grass and subjected to NH2-terminal amino acid sequence determinations. In each case (except for rice, whose prolamins apparently have blocked or unavailable NH2-terminal residues), primarily a single sequence was observed despite significant heterogeneity, suggesting that prolamin homology in each cereal arose through duplication and mutation of a single ancestral gene. Comparisons were then made to prolamin sequences previously determined for wheat, corn, barley, and rye. Within genera, different varieties or subspecies exhibited few differences, but more distantly related genera, subtribes, and tribes showed increasingly large differences. Within the subfamily Festucoideae, no homology was apparent between prolamins of oats and those of the subtribe Triticinae (including wheat, rye, and barley, for which prolamin homology was previously demonstrated). Within the subfamily Panicoideae, corn was shown to be closely related to teosinte but more distantly to Tripsacum. Sorghum was shown to have diverged less from corn than had millet. These comparisons demonstrate that prolamin sequence analyses can successfully predict and clarify evolutionary relationships of cereals.
journal_name
Biochem Genetjournal_title
Biochemical geneticsauthors
Bietz JAdoi
10.1007/BF00498931subject
Has Abstractpub_date
1982-12-01 00:00:00pages
1039-53issue
11-12eissn
0006-2928issn
1573-4927journal_volume
20pub_type
杂志文章abstract::Oral cancer is a multifactorial disease process and involves complex interactions between gene to gene and gene to environmental factors. Interleukin 8 (IL-8), a pro-inflammatory cytokine, having angiogenic activity with elevated expression in tumor cells, is reported to play an essential role in oral cancer developme...
journal_title:Biochemical genetics
pub_type: 杂志文章
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更新日期:1996-02-01 00:00:00
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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:1977-08-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1984-10-01 00:00:00
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更新日期:1978-12-01 00:00:00
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更新日期:1981-06-01 00:00:00
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pub_type: 杂志文章
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