1. A rise of ploidy level induces the expression of apomixis in Paspalum notatum

   • C. L. Quarin
   • Francisco Espinoza
   • Oscar A. Bovo

   Original Article Pages: 243 - 249

2. Molecular characterization of S-RNase genes and S-genotypes in the Japanese apricot (Prunus mume Sieb. et Zucc.)

   • H. Yaegaki
   • T. Shimada
   • M. Yamaguchi

   Original Paper Pages: 251 - 257

3. RNA and protein synthesis during in vitro pollen germination and tube elongation in Pinus monticola and other conifers

   • D. D. Fernando
   • John N. Owens
   • Abul K. M. Ekramoddoullah

   Original Article Pages: 259 - 264

4. Expression of a polygalacturonase enzyme in germinating pollen of Brassica napus

   • J. D. W. Dearnaley
   • Grant A. Daggard

   Original Paper Pages: 265 - 271

5. The breeding system of Lycium cestroides: a Solanaceae with ovarian self-incompatibility

   • R. Aguilar
   • Gabriel Bernardello

   Original Article Pages: 273 - 277

6. Flow cytometric evidence for endopolyploidization in cabbage (Brassica oleracea L.) flowers

   • N. Kudo
   • Yasuo Kimura

   Short Communication Pages: 279 - 283

7. Isolation and characterization of OsDMC1, the rice homologue of the yeast DMC1 gene essential for meiosis

   • Zhao-jun Ding
   • T. Wang
   • Shunong Bai

   Sequence Update Pages: 285 - 288

8. Sequence comparison of the 5’ flanking regions of Japanese pear (Pyrus pyrifolia) S-RNases associated with gametophytic self-incompatibility

   • Naoko Norioka
   • Hironori Katayama
   • S. Norioka

   Sequence Update Pages: 289 - 291