Wheat Information Service No.1 Wheat Information Service No.1


Contents

I. Foreword, p.1

II. Geneticists who met at a special meeting in Bellagio, Italy, p.2

III. Announcement for issue No. 2, p.3

IV. Genetic stocks at Laboratory of Genetics, Kyoto University, Japan, p.4
1. Species and varieties of Triticum, p.5
2. Species of Aegilops, p.9
3. Progress in researches of species hybrids in Aegilops, p.12
4. X-ray induced mutants and reciprocal translocation types, and their linkage relations in Einkorn wheats, p.13
5. Nullisomic dwarf strains and their gigas plants in the offspring of the pentaploid hybrid, Triticum polonicum x T. Spelta, p.15
6. Strains obtained by successive backcrosses of the hybrid, Triticum vulgare x Aegilops caudata, with the pollen of T. vulgare, p.16
7. Date of flowering time of Aegilops in Kyoto, p.17
8. Spring and winter growing habit of Aegilops and Triticum, p.18
9. Reaction of Aegilops and Triticum to Puccinia triticina Eriks., p.19
10. Artificial autopolyploids of Triticum and amphidiploids from Triticum x Aegilops, p.21
11. Artificial autopolyploids and amphidiploids in Aegilops, p.22
12. Table showing the possible and successful combinations of amphidiploids among 11 diploid species in Aegilops, p.23
13. Agropyron, p.24

V. Rules for nomenclature and symbolization of genes, and gene symbols in wheats, p.25
1. Rules for nomenclature and symbolization of genes, p.25
2. Gene symbols in wheats, p.28

VI. Supplement, p.35
" Origin of Wheat," an educational film on the discovery of the ancestors of common wheat and its synthesis, p.35

VII. Miscellaneous, p.42