Inheritance of leaf rust resistance in wheat lines carrying Aegilops speltoides Tausch. translocation in Chinese spring background

• Autorzy: Bansal U K , Saini R G , Khanna R
• Języki publikacji: EN

Abstrakty

EN

The genetic basis of seedling and adult-plant leaf rust resistance was analysed in wheat lines CS 2A/2M 4/2 and CS 2D/2M 3/8, which are reference lines for the leaf rust resistance gene Lr28. Some seedlings of CS 2A/2M 4/2 were susceptible to Indian Puccinia triticina (Pt) pathotypes 77-1,77-2 and 77-5. These susceptible seedlings exhibited resistance at the adult-plant growth stage. In contrast, CS 2D/2M 3/8 showed resistance to all Pt pathotypes both at the seedling and adult-plant growth stages. The analysis of inheritance in the susceptible plants of CS 2A/2M 4/2 (CS 2A/2M 4/2 APR selection) and CS 2D/2M 3/8 against Pt 77-5 (the frequently occurring Pt pathotype from the Indian subcontinent), indicated that line CS 2D/2M 3/8 was fixed for a dominant gene, presumed to be Lr28, whereas line CS 2A/2M 4/2 was heterogeneous for Lr28. The adult-plant resistance in the CS 2A/2M 4/2 APR selection was conferred by an unknown recessive gene.

Słowa kluczowe

EN

inheritance; leaf rust resistance; wheat line; Aegilops speltoides; translocation; Aegilops comosa; Puccinia triticina; Triticum aestivum; wheat; genetic variability

• Wydawca: -
• Czasopismo: Journal of Applied Genetics
• Rocznik: 2008
• Tom: 49
• Numer: 2
• Opis fizyczny: p.141-145,ref.

Twórcy

autor

Bansal U K

• Department of Plant Breeding, Genetics & Biotechnology, Punjab Agricultural Univeristy, Ludhiana, India

autor

Saini R G

• Department of Plant Breeding, Genetics & Biotechnology, Punjab Agricultural Univeristy, Ludhiana, India

autor

Khanna R

• Department of Plant Breeding, Genetics & Biotechnology, Punjab Agricultural Univeristy, Ludhiana, India

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