絞り込み

16644

広告

医学博士のブドウで造る北海道ワイン 異例の人気で増産態勢 (毎日新聞)

雪に覆われたぶどう畑を背景に、将来の夢を語る濱田さん=北海道三笠市達布で2019年12月13日、渡部宏人撮影 [PR] 旧産炭地の北海道三笠市で新規就農したがん...

  1. [医学] イルベサルタンがマルファン症候...
  2. [医学] TET発現低下に伴う皮膚幹細胞...
  3. 超高均一で究極に透明 常識を覆すゲルを東...
  4. [医学] 細菌性膣炎とIL-36γ発現亢...

ニュース一覧

Genetic Mapping of Pathogenicity and Aggressiveness of Gibberella zeae (Fusarium graminearum) Toward Wheat.

著者 Cumagun CJ , Bowden RL , Jurgenson JE , Leslie JF , Miedaner T
Phytopathology.2004 May ; 94(5):520-6.
この記事をPubMed上で見るPubMedで表示
この記事をGoogle翻訳上で見る Google翻訳で開く

スターを付ける スターを付ける     (7,771view , 2users)

Full Text Sources

Other Literature Sources

ABSTRACT Gibberella zeae is the major fungal pathogen of Fusarium head blight of wheat and produces several mycotoxins that are harmful to humans and domesticated animals. We identified loci associated with pathogenicity and aggressiveness on an amplified fragment length polymorphism based genetic map of G. zeae in a cross between a lineage 6 nivalenol producer from Japan and a lineage 7 deoxynivalenol producer from Kansas. Ninety-nine progeny and the parents were tested in the greenhouse for 2 years. Progeny segregated qualitatively (61:38) for pathogenicity:nonpathogenicity, respectively. The trait maps to linkage group IV, which is adjacent to loci that affect colony pigmentation, perithecium production, and trichothecene toxin amount. Among the 61 pathogenic progeny, the amount of disease induced (aggressiveness) varied quantitatively. Two reproducible quantitative trait loci (QTL) for aggressiveness were detected on linkage group I using simple interval analysis. A QTL linked to the TRI5 locus (trichodiene synthase in the trichothecene pathway gene cluster) explained 51% of the variation observed, and a second QTL that was 50 centimorgans away explained 29% of the phenotypic variation. TRI5 is tightly linked to the locus controlling trichothecene toxin type. The two QTLs, however, were likely part of the same QTL using composite interval analysis. Progeny that produced deoxynivalenol were, on average, approximately twice as aggressive as those that produced nivalenol. No transgressive segregation for aggressiveness was detected. The rather simple inheritance of both traits in this interlineage cross suggests that relatively few loci for pathogenicity or aggressiveness differ between lineage 6 and 7.
PMID: 18943772 [PubMed - in process]
印刷用ページを開く Endnote用テキストダウンロード