Wyniki wyszukiwania

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

100%

Bansal U. K., Saini R. G., Khanna R.

Journal of Applied Genetics

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2008

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tom 49

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nr 2

141-145

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.

2

Leaf rust resistance in spring barley cultivars and breeding lines

100%

Czembor H. J., Czembor J. H.

Plant Breeding and Seed Science

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2007

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tom 55

3

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Characterization of the suppressor gene of powdery mildew resistance gene Pm8 in common wheat [Triticum aestivum L.] cv. Regina

100%

Hanusova R., Bartos P., Zeller F. J.

Journal of Applied Genetics

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1997

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tom 38

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nr 1

The Czech winter wheat cv. Regina which does not possess specific genes for powdery mildew resistance except Pm5 was crossed with the cvs. Florida, Tjelvar, Agra, Olymp and Sabina, all possessing T1BL-1RS and the dominant suppressor SuPm8, with Riebesel 47/51 possessing substitution 1R-1B and SuPm8 and with the T1BL-1RS cvs. Sparta, Iris, Mona without SuPm8. Powdery mildew isolates avirulent on Pm8 and virulent on other Pm genes were used in the trials. Tests for resistance were carried out either on seedlings at the first leaf stage or on detached leaves cultured on benzimidazolagar. No segregation for resistant plants in F₂ of all crosses of the cv. Regina with cultivars possessing T1BL-1RS and SuPm8 indicates that Regina has SuPm8. The segregation ratio 3 resistant: 13 susceptible in the F₂ population of crosses between the cv. Regina and cultivars possessing T1BL-1RS and no SuPm8 also confirms the presence of SuPm8 in the cv. Regina. The obtained results also indicate that expression of Pm2 and Pm4b is not affected by SuPm8 and that SuPm8 does not affect stem rust resistance gene Sr31 located on 1RS segment.

4

Screening for leaf rust resistance in collections of barley landraces from Southern Mediterranean Region

80%

Czembor J. H., Czembor H. J.

Plant Breeding and Seed Science

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2007

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tom 56

5

Leaf rust resistance in selections from barley landraces collected in Sardinia

80%

Czembor J. H., Czembor H. J., Attene G., Papa R.

Plant Breeding and Seed Science

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2007

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tom 56

6

Leaf rust resistance in winter barley cultivars and breeding lines

80%

Czembor H. J., Czembor J. H.

Plant Breeding and Seed Science

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2007

|

tom 56

Ograniczanie wyników

4 Plant Breeding and Seed Science

2 Journal of Applied Genetics

4 Czembor H. J.

4 Czembor J. H.

1 Attene G.

1 Bansal U. K.

1 Bartos P.

1 Hanusova R.

1 Khanna R.

1 Papa R.

1 Saini R. G.

1 Zeller F. J.

1 2008

4 2007

1 1997

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

Leaf rust resistance in spring barley cultivars and breeding lines

Characterization of the suppressor gene of powdery mildew resistance gene Pm8 in common wheat [Triticum aestivum L.] cv. Regina

Screening for leaf rust resistance in collections of barley landraces from Southern Mediterranean Region

Leaf rust resistance in selections from barley landraces collected in Sardinia

Leaf rust resistance in winter barley cultivars and breeding lines