1. Methodologies for estimating the sample size required for genetic conservation of outbreeding crops

   • J. Crossa

   Review Pages: 153 - 161

2. Production and cytogenetics of Triticum aestivum L. hybrids with some rhizomatous Agropyron species

   • A. Mujeeb-Kazi
   • S. Roldan
   • S. Farooq

   Originals Pages: 162 - 168

3. Identification of new mitochondrial genome organizations in wheat plants regenerated from somatic tissue cultures

   • C. Hartmann
   • Y. Henry
   • A. Rode

   Originals Pages: 169 - 175

4. Segregation for endosperm lysine in F₂, F₃ and F₄ progeny from a cross of in vitro-selected and unselected cultivar of rice

   • G. W. Schaeffer
   • F. T. Sharpe Jr.
   • J. T. Dudley

   Originals Pages: 176 - 183

5. Biochemical and cytological characterization of wheat/Aegilops ventricosa addition and transfer lines carrying chromosome 4M^V

   • M. Mena
   • J. Orellana
   • A. Delibes

   Originals Pages: 184 - 188

6. Asymmetric somatic hybrids of Brassica: partial transfer of B. campestris genome into B. oleracea by cell fusion

   • Y. Yamashita
   • R. Terada
   • K. Shimamoto

   Originals Pages: 189 - 194

7. Methods for the study of cytoplasmic effects on quantitative traits

   • J. A. Mosjidis
   • J. G. Waines
   • A. A. Rosielle

   Originals Pages: 195 - 199

8. Genetic characterization of a mutation that enhances paraquat tolerance in the fern Ceratopteris richardii

   • L. G. Hickok
   • O. J. Schwarz

   Originals Pages: 200 - 204

9. Establishment of a system of high-frequency embryogenesis from long-term cell suspension cultures of rice (Oryza sativa L.)

   • K. Ozawa
   • A. Komamine

   Originals Pages: 205 - 211

10. Paternal inheritance of chloroplast DNA and maternal inheritance of mitochondrial DNA in loblolly pine

    • D. B. Neale
    • R. R. Sederoff

    Originals Pages: 212 - 216

11. Linkages among zein genes determined by isoelectric focusing

    • C. M. Wilson
    • G. F. Sprague
    • T. C. Nelsen

    Originals Pages: 217 - 226

12. Evaluation of soybean resistance to Phialophora gregata culture filtrate in tissue culture

    • D. B. Willmot
    • C. D. Nickell
    • L. E. Gray

    Originals Pages: 227 - 232

13. Ibf-1 (Iodine binding factor), a highly variable marker system in the Triticeae

    • C. J. Liu
    • M. D. Gale

    Originals Pages: 233 - 240

14. Chromosomal location of resistance to barley yellow mosaic virus in German winter-barley identified by trisomic analysis

    • R. Kaiser
    • W. Friedt

    Originals Pages: 241 - 245

15. Cross prediction in a potato breeding programme by evaluation of parental material

    • J. Brown
    • P. D. S. Caligari

    Originals Pages: 246 - 252

16. Heterosis in crosses between lines of Drosophila melanogaster selected for adaptation to different environments

    • N. G. Ehiobu
    • M. E. Goddard

    Originals Pages: 253 - 259

17. Genetic control of seed weight in flax (Linum usitatissimum) and possible implications

    • H. Tyson

    Originals Pages: 260 - 270

18. Genetic variability between two breeds based on restriction fragment length polymorphisms (RFLPs) of major histocompatibility complex class I genes in the pig

    • Y. C. Jung
    • M. F. Rothschild
    • C. M. Warner

    Originals Pages: 271 - 274

19. Diversity pattern in Sesamum mutants selected for a semi-arid cropping system

    • B. R. Murty
    • F. Oropeza

    Originals Pages: 275 - 286

20. Distribution of genetic variability in a durum wheat world collection

    • M. J. Asins
    • E. A. Carbonell

    Originals Pages: 287 - 294

21. Monoparametric models of flow cytometric karyotypes with spreadsheet software

    • J. Conia
    • P. Muller
    • P. Gadal

    Originals Pages: 295 - 303

22. Book reviews

    • H. F. Linskens

    BookReview Pages: 304 - 304