Abstract
Since the development of cell theory, the most significant discovery in biology was the theory of chromosomal basis of hereditary by Morgan et al. (1915) by demonstrating a parallelism between abnormal genetic phenomenon and corresponding chromosomal aberrations. While the cytogenetic research advanced dramatically with various species, including humans, such work with poultry experienced a lag, primarily due to lack of proper techniques for identification and further characterization of the chromosomes as well as to the fact that aves have a rather large number of microchromosomes.Cytogenetic methods are useful not only for the routine identification of chromosomes and linkage relationships, but also for detection of pathological conditions in cells. Structural or numerical alterations in chromosome complement may be of use in sex-limited inheritance and increasing the genetic variation in a population. Interspecific transfer of genetic material, cell hybridization, polyploidization, and chromosome mediated gene transfer could offer practical advantages in commercial .
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