The pairing and separation behavior of chromosomes during cell division helps in taxonomic studies.
The chromosome behavior is responsible for the development of aneuploids, polyploids and also origin of new species.
Chromosome morphology is determined by the position of the centromere..
Cytotaxonomy is the classification of organisms based on cytological characters like chromosome number, morphology and chromosomal behaviour during meiosis between different taxons.
Based on the position of centromere in the chromosome, there are different types of chromosomes..
Cytology is used to categorize organisms by investigating cellular properties such as chromosome counts and structure.
The most often utilized parameter in cytotaxonomy is an organism's chromosomal layout to infer the relationship between two creatures..
Cytological evidences is used for distinguishing taxa; to determine the origin of groups and to understand the evolutionary history of related taxa particularly those at the infraspecific and specific levels cytotaxonomy is a part of experimental taxonomy..
The first step in cytotaxonomy is sampling of a taxon and study of chromosomes of many populations within geographic races or species.
Differences in chromosome number, their morphology and behaviour at meiosis usually indicates genetic differences of taxonomic significance..
6.
Cytology in Relation to Taxonomy:
Cytotaxonomy is a branch of taxonomy that uses the characteristics of cellular structures to classify organisms.
In cytotaxonomy, the chromosomal configuration of an organism is the most widely used parameter to infer the relationship between two organisms.
The group C5 comprises colporate pollen.
The group C6comprises pororate pollen.
Cytology is the study of the morphology and physiology of cells.
Normally anatomists deal with shapes, size, wall structure, pattern, etc. but cytologists deal with the internal organelles of the cell and detailed structure of cell wall.
Cytology has contributed to tracking the evolutionary history of many organisms, especially primates and flowering plants.
As example, karyotype comparisons have largely clarified the evolution of Arabidopsis thaliana and of saffron crocus, though there are many more studies that deserve highlighting.
