[The pattern of the expression of homeo box-containing genes in the mesenchyme of the mammalian limb bud as a coordinate network for subsequent morphogenetic processes].

Hypothesis is developed about mechanisms of determination of limb bud of mammals as a result of expression of homeo box containing genes (hox genes) of known up to date four hox families. Spatial pattern of the expression plays a role of coordinate system for subsequent processes of morphogenesis and differentiation of the limbs. Propositions of the hypothesis are realized in a computer dynamic model. The results of modeling are compared with known data on features of the expression of hox genes in the mesenchyme of developing limb buds in mammals and birds.