A genetic study of unilateral incompatibility between diploid (1EBN) Mexican species Solanum pinnatisectum and S. cardiophyllum subsp. cardiophyllum Joseph C. KuhlMichael J. HaveyRobert E. Hanneman Original Article Pages: 305 - 313
Pollen UDP-glucose pyrophosphorylase showing polymorphism well-correlated to the S genotype of Pyrus pyrifolia Daiji KiyozumiTakeshi IshimizuShigemi Norioka Original Article Pages: 315 - 323
Developmental expression of polyubiquitin genes and distribution of ubiquitinated proteins in generative and sperm cells Mohan B. SinghHuiling XuScott D. Russell Original Article Pages: 325 - 329
Changes of calcium distribution in egg cells, zygotes and two-celled proembryos of rice (Oryza sativa L.) J. Zhao F. Yu H. Yang Original Article Pages: 331 - 337
Isolation and characterization of male-germ-cell transcripts in Nicotiana tabacum Hengping XuKoen WeteringsCelestina Mariani Original Article Pages: 339 - 346
Variability of pollen grain features: a plant strategy to maximize reproductive fitness in two species of Dianthus? Tejaswini Original Article Pages: 347 - 353
The Arabidopsis MEI1 gene likely encodes a protein with BRCT domains Ming YangSheila McCormick Short Communication Pages: 355 - 357
