Subject

Researcher

Ø  Every living organisms has specific chromosome number and chromosome morphology.Despite the fact that different species have the same chromosome number,they have different chromosome morphology. Karyological properties are also crucial in order to solve taxonomic problems and determine phylogenetic  relationships.

Ø  Karyotype is the representation of entire metaphase chromosomes in a cell, arranged in order of size. The Criteria used in karyotype analysis are chromosome number , total length, short/long arm length, arm ratio, centromere position and satellite.

Ø  BAB Bschromo software was developed in order to perform that methods pratically.By using the programme, total length and short/long arm length can be measure. According to the results homolog chromosome pairs can be identified and idiogram can be drawn.

Trigonella sp

                                  Morphology  Speciality
     Scale unit Mikron µm
     No Long Arm  Short Arm  Total Length Arm Ratio Centromeric index Relative Length Chr.Type
      1      1,01     0,81        1,83        1,25             6,64           14,92    m
      2      0,88     0,76        1,64        1,15             6,24           13,39    m
      3      0,99     0,59        1,58        1,68             4,82           12,91    m
      4      0,80     0,76        1,57        1,05             6,24           12,78    m
      5      0,99     0,56        1,55        1,77             4,57           12,67    sm
      6      0,74     0,65        1,39        1,15             5,28           11,34    m
      7      0,75     0,63        1,38        1,19             5,15           11,28    m
      8      0,72     0,59        1,31        1,22             4,83           10,71    m
        Haploid chromosome Length    12,25
                     Metacentric     7
                   Submetacentric    1
                   Subtelocentric    0
                      Akrocentric    0