measurements of chromosome aberration at tomato plants

1,81,61,41,210,80,6D0D1D2D30,40,20% Prophases %Metaphaseswith anomalies with anomalies%A+T withanomaliesOther types ofanomaliesFig. 3: Types and frequency of chromosomal aberrations observedin root meristematic cells - genotype L27STable 5Types and frequency of chromosomal aberrations observed in root meristematic cells – genotype FRANCESCAVariant Total noof cells% Prophaseswith anomalies%Metaphaseswith anomalies%A+T withanomaliesOther typesofanomaliesD0 6021 0,52 0,41 1,96 1,11D1 5478 0,24 0,26 1,32 1,00D2 5965 0,16 0,12 1,02 0,89D3 5418 0,28 0,22 1,35 1,2921,81,61,41,210,80,6D0D1D2D30,40,20% Prophaseswith anomalies%Metaphaseswith anomalies%A+T withanomaliesOther types ofanomaliesFig. 3: Types and frequency of chromosomal aberrations observedin root meristematic cells - genotype FrancescaThe main types of aberrations identified atregenerated plants are: chromosome clumping,contraction, stickiness, paling, fragmentation,dissolution, chromosome and chromatid bridges, C-mitosis and endoploidy.For all the genotypes tested in thepresent study the highest incidence of aberrations wasobserved in ana-telophases. The most commonabnormalities were ana-telophases with simple ormultiple bridges, expelled or late chromosomes andmultipolar ana-telophases – figure 4. We also detectedabnormalities is metaphases that were abnormallyorganized, with ring chromosomes, minutes, expelledchromosomes, fragment, etc – figure 5.In a smaller number we detected prophases thatpresented different types of chromosomal aberrationslike late prophases, with ring chromosomes, expelledchromosomes etc – figure 6.277