INHERITANCE OF RESISTANCE TO LOOSE SMUT AND COVERED SMUT IN THE OAT VARIETIES BLACK MESDAG, CAMAS, AND RODNEY

1969 ◽  
Vol 11 (4) ◽  
pp. 919-923 ◽  
Author(s):  
W. J. Cherewick ◽  
R. I. H. McKenzie
Keyword(s):  
Susceptible Variety ◽  
The Other ◽  
Inheritance Of Resistance ◽  
Loose Smut

F3 lines from three smut resistant oat varieties crossed with the susceptible variety Anthony were inoculated with compatible monosporidial lines of two inbred races of Ustilago avenae and one inbred race of U. kolleri. Rodney, Black Mesdag, and Camas each have one gene conferring resistance to two races of U. avenae and to one race of U. kolleri. Black Mesdag and Camas have a second gene, conferring resistance to the U. kolleri race. F3 lines from the Black Mesdag × Anthony cross were inoculated with teliospores of a U. avenae race virulent on all varieties except Black Mesdag. One gene in Black Mesdag conferred resistance to this and the other races used. F3 lines from a cross between Camas and Black Mesdag segregated, indicating that these varieties have genes for smut resistance at different loci.

THE INHERITANCE OF LOOSE SMUT RESISTANCE.: I. THE INHERITANCE OF RESISTANCE IN FOUR BARLEY VARIETIES IMMUNE TO RACE 2 OF LOOSE SMUT

1962 ◽  
Vol 42 (1) ◽  
pp. 69-77 ◽  
Author(s):  
E. N. Larter ◽  
H. Enns
Keyword(s):  
Disease Resistance ◽  
Dominant Gene ◽  
The Other ◽  
Inheritance Of Resistance ◽  
Single Dominant Gene ◽  
Loose Smut ◽  
Race 2 ◽  
Or Genes ◽  
Dominant Genes

Four barley varieties, each immune to a Valki-attacking culture of loose smut (designated as race 2), were studied with respect to the inheritance of their resistance. Jet (C.I. 967) and Nigrinudum (C.I. 2222) were each found to possess two independent dominant genes determining resistance. Steudelli (C.I. 2266) proved to be immune to race 2 through the action of a single dominant gene, while resistance of Hillsa (C.I. 1604) was found to be conditioned by two complementary dominant genes. The absence of susceptible F3 families in crosses between Jet, Nigrinudum, and Steudelli indicated that these three varieties have in common a gene or genes for resistance to the race of smut used. The two complementary genes for resistance in Hillsa proved to be distinct from those of the other three varieties under study.The use of genetic analyses of disease resistance based upon classification of F3 families of the backcross to the resistant source is described and the merits of such a method are discussed.

INHERITANCE OF LOOSE SMUT RESISTANCE: I. INHERITANCE OF RESISTANCE TO A TREBI-ATTACKING CULTURE OF USTILAGO NUDA (JENS.) ROSTR. IN FIVE BARLEY VARIETIES OF ABYSSINIAN ORIGIN

1962 ◽  
Vol 42 (3) ◽  
pp. 472-480 ◽  
Author(s):  
D. R. Metcalfe ◽  
S. B. Helgason
Keyword(s):  
Immune Reaction ◽  
Susceptible Variety ◽  
Inheritance Of Resistance ◽  
Loose Smut ◽  
The Third ◽  
Ustilago Nuda ◽  
Dominant Genes

The immune reaction of the barley varieties Bifarb (C.I. 3951-3), Kitchin (C.I. 1296-1), Nigrinudum (C.I. 2222), Jet (C.I. 967), and C.I. 5798 to a Trebi-attacking culture of Ustilago nuda (Jens.) Rostr. was studied in the F2 and F3 generations of crosses between these varieties and the U. nuda susceptible variety Newal (C.I. 6088). Resistance was found to be conditioned by single dominant genes. Studies of the F3 and F4 generations of crosses among the immune varieties indicated that the genes for immunity were each located at the same locus. A study of the F3 generation of a cross between Jet and the third outer-glume mutant from Valkie (C.I. 5748), designated herein as Valkie-trd, indicated that these genes for immunity differed from that in Valkie. Because of the similarity of the genetics of reaction to U. nuda in the five varieties, it was concluded that they probably originated from a common Abyssinian ancestor.

INHERITANCE OF RESISTANCE TO LOOSE SMUT, COVERED SMUT AND FALSE LOOSE SMUT IN THE BARLEY VARIETY JET

1962 ◽  
Vol 42 (1) ◽  
pp. 176-189 ◽  
Author(s):  
D. R. Metcalfe
Keyword(s):  
Close Association ◽  
Dominant Gene ◽  
Barley Variety ◽  
The Other ◽  
Puccinia Graminis ◽  
Inheritance Of Resistance ◽  
Single Dominant Gene ◽  
Loose Smut ◽  
Ustilago Hordei ◽  
Dominant Genes

The inheritance of reaction to single cultures of Ustilago nuda (Jens.) Rostr., Ustilago nigra Tapke, and Ustilago hordei (Pers.) Lagerh. was studied in the F1, F2 and F3 generations of crosses between the resistant barley variety Jet and the susceptible varieties Vantage and Plush. It was concluded that Jet has a single dominant gene for resistance of U. nuda and probably dominant genes for resistance of U. nigra and U. hordei. A close association was detected, in the segregating populations, between the reactions to U. nigra and U. hordei. No association was detected between resistance to U. nuda and resistance to the other two smut species. No associations were found between reaction to any of the three smut species and the genes responsible for the following marker characters: resistance vs. susceptibility to Puccinia graminis tritici Eriks. and Henn. (Tt), two- vs. six-row spike (Vv), naked vs. hulled kernel (Nn), black vs. white lemma and pericarp (Bb), and rough vs. smooth awn (Rr).

INHERITANCE OF LOOSE SMUT RESISTANCE: II. INHERITANCE OF RESISTANCE IN THREE BARLEY VARIETIES TO RACES 1, 2, AND 3 OF USTILAGO NUDA (JENS.) ROSTR.

1963 ◽  
Vol 43 (3) ◽  
pp. 390-396 ◽  
Author(s):  
D. R. Metcalfe ◽  
W. H. Johnston
Keyword(s):  
Single Gene ◽  
Winter Barley ◽  
Barley Variety ◽  
The Other ◽  
Duplicate Genes ◽  
Inheritance Of Resistance ◽  
Loose Smut ◽  
Race 1 ◽  
Ustilago Nuda ◽  
Race 2

The inheritance of resistance of the barley varieties Br. 5479–754, a derivative of Jet (C.I. 967), PR28, a derivative of C.I. 4966, and Valkie (C.I. 5748) to races 1, 2 and 3 of Ustilago nuda (Jens.) Rostr. was studied. The genes for resistance in all varieties were dominant in effect. Resistance to races 2 and 3 in Br. 5479–754 was due to a single gene and resistance to race 1 to duplicate genes. A single gene in PR28 controlled resistance to all three races. Valkie proved susceptible to race 2 and had single and independent genes for resistance to each of races 1 and 3. The genes for resistance to the various smut races in each variety was independent of those in the other two.The winter barley variety C.I. 4966 is a valuable new source of immunity to U. nuda.

THE INHERITANCE OF RESISTANCE TO ASCOCHYTA PISI LIB. IN PEAS

1958 ◽  
Vol 38 (2) ◽  
pp. 215-218 ◽  
Author(s):  
L. H. Lyall ◽  
V. R. Wallen
Keyword(s):  
Susceptible Variety ◽  
Inheritance Of Resistance ◽  
Ascochyta Pisi ◽  
Dominant Genes

As part of a program for breeding horticultural varieties of peas resistant to Ascochyta pisi Lib., a study was made of the inheritance of resistance to a monospore isolate of the pathogen using a cross between the resistant pea strain, Ottawa A-100, and the susceptible variety, Thomas Laxton. The results indicate that resistance to the isolate used is due to duplicate dominant genes, either one of which will give resistance.

THE INHERITANCE OF LEAF RUST RESISTANCE IN SEVEN VARIETIES OF COMMON WHEAT

1961 ◽  
Vol 41 (2) ◽  
pp. 342-359 ◽  
Author(s):  
R. G. Anderson
Keyword(s):  
Leaf Rust ◽  
Common Wheat ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Susceptible Variety ◽  
The Other ◽  
Seedling Resistance ◽  
Genetic Studies ◽  
Type Reaction ◽  
Biological Studies

The inheritance of seedling resistance to races 1a, 5a, 11, 15a and 126a of leaf rust was studied in the varieties Exchange and Selkirk and to races 1a and 15a in the varieties Lee, Gabo, Timstein, Mayo 52 and Mayo 54. Thatcher was used as the susceptible variety. Rust tests were carried out on F1 and F2 populations of diallel crosses among these varieties and on F2 families from the backcrosses to Thatcher. Two genes were found. One gene LrE conditions a (2) type reaction to all five races in Exchange and Selkirk. The other gene LrL conditions a (; 1 =) type reaction to races 1a and 15a in all seven varieties. Isogenic lines possessing these genes are being developed in the varieties Prelude and Thatcher. The importance of such lines in future genetic studies and their application in other biological studies are discussed.The increase in amount of leaf rust found on Lee and Selkirk in Canada during the period 1951–1958 is accounted for by the increase of races which render the gene LrL ineffective in these two varieties.

Inheritance of Resistance to Loose Smut of Oat

Plant Disease ◽  
1993 ◽  
Vol 77 (8) ◽  
pp. 822
Author(s):  
Roy D. Wilcoxson
Keyword(s):  
Inheritance Of Resistance ◽  
Loose Smut

The Inheritance of Resistance of Oat Hybrids to Loose Smut

Mycologia ◽  
1925 ◽  
Vol 17 (4) ◽  
pp. 163 ◽  
Author(s):  
George M. Reed
Keyword(s):  
Inheritance Of Resistance ◽  
Loose Smut
Sign in / Sign up

Export Citation Format

Share Document