The mating-type and pathogenicity locus of the fungus Ustilago hordei spans a 500-kb region

The fungal pathogen Ustilago hordei causes the covered smut disease of barley and oats. Mating and pathogenicity in this fungus are controlled by the MAT locus, which contains two distinct gene complexes, a and b. In this study, we tagged the a and b regions with the recognition sequence for the restriction enzyme I-SceI and determined that the distance between the complexes is 500 kb in a MAT-1 strain and 430 kb in a MAT-2 strain. Characterization of the organization of the known genes within the a and b gene complexes provided evidence for nonhomology and sequence inversion between MAT-1 and MAT-2. Antibiotic-resistance markers also were used to tag the a gene complex in MAT-1 strains (phleomycin) and the b gene complex in MAT-2 strains (hygromycin). Crosses were performed with these strains and progeny resistant to both antibiotics were recovered at a very low frequency, suggesting that recombination is suppressed within the MAT region. Overall, the chromosome homologues carrying the MAT locus of U. hordei share features with primitive sex chromosomes, with the added twist that the MAT locus also controls pathogenicity.

The oat plant : its histology and development /

Bibliography: p. 111-112.

Folk-songs, chanteys and singing games /

For medium voice and piano.

Nová domácí kuchařka pro česko-americké hospodyně, čili, Praktický a spolehlivý návod k nejsnadnějšímu připravování těch nejoblíbenějších, jednoduchých i složitých, českých, amerických a francouzských masitých i postních pokrmu všeho druhu : jakož i ruznych zavařenin, rozličných lahudek a též nápoju, kromě jiných užitečných pokynu a předpisu /

Includes section on napkin folding; cooking glossary of Czech and English language, including English pronuncation with Czech phonetics. Sample recipes: Obyčejná bramborová polévka, Potato soup, Soupe de pommes de terre; Skopová sekanina s vejci, Mutton hash with eggs, Hachis de mouton aux oeufs; Mramorový dort, Marble cake, Gâteau marbre.

Information pertaining to farm, home, and community : with special reference to type-of-farming area.

Errata sheets tipped in.

The traditional games of England, Scotland, and Ireland, with tunes, singing-rhymes, and methods of playing according to the variants extant and recorded in different parts of the Kingdom;

"List of authorities": v. 1, p. xi-xiv; v. 2, p. vii-ix.

Kreuzungsuntersuchungen an Hafer und Weizen /

K. Fysiografiska sa̲llskapets handlingar. n. f., bd. 20, nr. 2; bd. 22, nr. 6.

L'avoine; description, classification, étude du grain des variétés françaises et étrangères,

Mode of access: Internet.

Die Zuchtung der vier Hauptgetreidearten und der Zuckerrübe.

Mode of access: Internet.

Mrs. Gerald's niece : a novel /

Mode of access: Internet.

[Acted drama] /

Remarks by William Hazlitt and others.

Oat history, identification and classification /

Includes index.

Oat identification and classification /

Cover title.

Inheritance of morphologic characters in Avena /

Caption title.

Identifying races of Puccinia graminis f. sp. avenae; a modified international system

Bibliography: p. 19-23.