Such experiments are needed in order to establish the relative importance of environmental factors in the variation of development rates.
Spatial dependency of land use changes and variations of land development can be identified between the eastern development corridor and the western development corridor.
Tremendous natural variation of growth and development exists within species.
Various studies suggest that common DNA sequence variants in genes, especially single nucleotide polymorphisms (SNPs) are responsible for many of these examples of variation in development of diseases, responses to pathogens, chemicals and drugs (Erichsen and Chanock, 2004; Bondy, 2007; Giacomini, Brett et al. 2007; Owen and McCarthy, 2007; Rabik and Dolan, 2007).
A number of variations in pattern of development of the female gametophyte occur in various angiosperms; for example, in certain species of evening primrose (Oenothera), the female gametophyte contains only 4 nuclei, whereas in Peperomia, as many as 16 may be present.
Variations in development of the iliac apophysis may occur.
Our observation suggested that the measured gene expression differences between the 509 B. napus inbreds were more than adequate for the correlation with phenotypic variation of seedling development.
The gene expression differences between the 509 B. napus inbreds were more than adequate for the correlation with phenotypic variation of seedling development.
Up to now, however, little is known about the genetic mechanisms as well as the natural variation of seedling development in B. napus.
However, variation among cows in circulating E1SO4 levels during late pregnancy may be caused by variation of placental development, oestrogen production and conjugation [ 31] and the specific responses of maternal and foetal units [ 29].
Also, we did not study the improvement of delays over time, and it is not fully clear which of those represent just a variation of individual development and which some form of a permanent pathology.
