1. Apomixis is not developmentally conserved in related, genetically characterized Hieracium plants of varying ploidy

   • A. M. Koltunow
   • S. D. Johnson
   • R. A. Bicknell

   Original Paper Pages: 253 - 266

2. In vitro double fertilization in Nicotiana tabacum (L.): fusion behavior and gamete interaction traced by video-enhanced microscopy

   • M. -X. Sun
   • A. Moscatelli
   • M. Cresti

   Original Paper Pages: 267 - 275

3. The pollen-specific gene Ntp303 encodes a 69-kDa glycoprotein associated with the vegetative membranes and the cell wall

   • F. R. A. Wittink
   • B. Knuiman
   • George J. Wullems

   Original Paper Pages: 276 - 284

4. Ubiquitin and ubiquitin-conjugated proteins in the olive (olea europaea l.) pollen

   • J. D. Alché
   • R. Butowt
   • M. I. Rodríguez-García

   Original Paper Pages: 285 - 291

5. Comparison of transient and stable expression by a pollen-specific promoter: the transformation results do not always agree

   • D. A. Hamilton
   • Y. H. Schwarz
   • J. P. Mascarenhas

   Short Communication Pages: 292 - 295

6. Unequal distribution of DNA-containing organelles in generative and sperm cells of Erythrina crista-galli (Fabaceae)

   • C. Saito
   • N. Nagata
   • T. Kuroiwa

   Short communication Pages: 296 - 301

7. Pollen coatings – chimaeric genetics and new functions

   • H. G. Dickinson
   • C. J. Elleman
   • J. Doughty

   Commentary Pages: 302 - 309

8. An Arabidopsis homologue of the Drosophila meiotic gene Pelota

   • A. P. Caryl
   • I. Lacroix
   • F. C. H. Franklin

   Sequence Update Pages: 310 - 313