1. From the editorial board

   Current Problems of Developmental Biology Pages: 125 - 125

2. Phenomenon of polyembryony. Genetic heterogeneity of seeds

   • T. B. Batygina
   • G. Yu. Vinogradova

   Biology of Plant Development Pages: 126 - 151

3. Role of cooperative cell movements and mechano-geometric constrains in patterning of axial rudiments in Xenopus laevis embryos

   • L. V. Beloussov
   • E. G. Korvin-Pavlovskaya
   • E. S. Kornikova

   Morphogenesis in Development Pages: 152 - 163

4. Analysis of expression of parental alleles Xist and Gla in interspecific embryonic hybrid cells during induced in vitro inactivation of X-chromosomes

   • M. V. Puzakov
   • N. R. Battulin
   • O. L. Serov

   Genetics of Development Pages: 164 - 170

5. Role of short RNAs in regulating the expression of genes and mobile elements in germ cells

   • M. S. Klenov
   • A. D. Stolyarenko
   • V. A. Gvozdev

   Molecular Biology of Development Pages: 171 - 183

6. Specific features of eye regeneration in multiocular planarians Polycelis tenuis

   • I. M. Sheiman
   • Z. V. Sedel’nikov

   Mechanisms of Regeneration Pages: 184 - 189

7. Development of the muscle system and contractile activity in the mussel Mytilus trossulus (Mollusca, Bivalvia)

   • N. A. Odintsova
   • V. A. Dyachuk
   • A. A. Karpenko

   Regulation of Animal Organogenesis Pages: 190 - 196