Chromosomal location of resistanceto Septoria tritici in seedlings of a synthetichexaploid wheat, Triticum spelta and twocultivars of Triticum aestivum

详细信息    查看全文

• 作者：Simó ; n ; M.R. ; Worland ; A.J. ; Cordo ; C.A. ; Struik ; P.C.
• 关键词：Chromosomal location ; leaf blotch ; Mycosphaerella graminicola ; Septoria tritici ; substitution lines ; wheat
• 刊名：Euphytica
• 出版年：2001
• 出版时间：2001
• 年：2001
• 卷：119
• 期：1/2
• 页码：151-155
• 全文大小：29 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Physiology
  Plant Sciences
  Ecology
  
• 出版者：Springer Netherlands
• ISSN：1573-5060

文摘

Chromosomal location of resistance to two virulent Argentinean isolatesof Septoria tritici was studied in two wheat ( Triticum aestivumL.) cultivars (Cappelle-Desprez & Cheyenne), a synthetic hexaploid(Synthetic 6x) and Triticum spelta in seedlings. Substitution lines of these(resistant or moderately resistant) genotypes into (susceptible) ChineseSpring were selected from a previous screening. For Synthetic 6x,resistance was clearly located in chromosome 7D. Chinese Spring with the7D chromosome substituted by Synthetic 6x showed almost completeresistance, similar to the level of Synthetic 6x. For the substitutions withCappelle-Desprez, Cheyenne, and T.spelta there were no lines with abehaviour similar to the resistant parent. However, some substitutions weremore resistant than the susceptible parent suggesting that severalchromosomes could be involved in the resistance of these genotypes toSeptoria leaf blotch.