Genetic mapping, marker assisted selection and allelic relationships for the Pu₆ gene conferring rust resistance in sunflower

• Bulos Mariano

  Biotechnology Department, Nidera S.A.

• Vergani Pablo Nicolas

  Sunflower Breeding Program, Nidera S.A.

• Altieri Emiliano

  Biotechnology Department, Nidera S.A.

書誌事項

タイトル別名

• Genetic mapping, marker assisted selection and allelic relationships for the <i>Pu₆</i> gene conferring rust resistance in sunflower

抄録

Rust resistance in the sunflower line P386 is controlled by Pu₆, a gene which was reported to segregate independently from other rust resistant genes, such as R₄. The objectives of this work were to map Pu₆, to provide and validate molecular tools for its identification, and to determine the linkage relationship of Pu₆ and R₄. Genetic mapping of Pu₆ with six markers covered 24.8 cM of genetic distance on the lower end of linkage Group 13 of the sunflower consensus map. The marker most closely linked to Pu₆ was ORS316 at 2.5 cM in the distal position. ORS316 presented five alleles when was assayed with a representative set of resistant and susceptible lines. Allelism test between Pu₆ and R₄ indicated that both genes are linked at a genetic distance of 6.25 cM. This is the first confirmation based on an allelism test that at least two members of the R_adv/R₄/R₁₁/ R_13a/R_13b/Pu₆ cluster of genes are at different loci. A fine elucidation of the architecture of this complex locus will allow designing and constructing completely new genomic regions combining genes from different resistant sources and the elimination of the linkage drag around each resistant gene.

収録刊行物

• Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ

  Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ 64 (3), 206-212, 2014

  日本育種学会

キーワード

• <i>Helianthus annuus</i>
• <i>Puccinia helianthi</i>
• disease resistance
• anticipatory breeding
• complex <i>locus</i>
• marker assisted selection
• molecular breeding

詳細情報

• CRID: 1390001204723680896
• NII論文ID: 130004690762
• NII書誌ID: AA11317194
• DOI: 10.1270/jsbbs.64.206
• ISSN: 13473735
• ISSN: 13447610
• NDL書誌ID: 025778598
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025778598
• Web Site: https://www.jstage.jst.go.jp/article/jsbbs/64/3/64_206/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可