Skip to main content

Table 1 Telomere lengths in cloned animals

From: Will cloned animals suffer premature aging – The story at the end of clones' chromosomes

Donor Cell TRF (kb) Clone vs. Control Tissue Assayed Telomerase Ref
Species Origin Cell type Note Donor Control Clone     
Sheep Adult Female Mammary gland    23.9 19.14 Shorter Blood   [11]
Sheep Fetal Female Embryonic Very short culture   23.9 21.19 Similar Blood   [11]
Cattle Fetal Female fibroblast Extreme Long culture 15.2 18.3 20.1 Longer Blood cells High in Blastocyst [13]
Cattle Adult Female Fibroblast cumulus   12.4 14.7 15.4 Similar Fibroblast High in blastocyst [15]
Cattle Adult Female fibroblast   13.68 20.9 (fetal) 20.5 (calf) 17.95 (fetal) 15.3 (calf) Similar Similar Fibroblast High in blastocyst [16]
  Adult Male    17.85 20.9 (fetal) 20.5 (calf) 22.74 (fetal) 21.33 (calf) Similar Fibroblast High in blastocyst [16]
Cattle Adult Male Ear      Longer Ear   [12]
  Adult Male Ear      Similar White blood cells   [12]
Cattle Adult Female Epithelial   15–16 20.43 12.5–14.3 Shorter White blood cells   [21]
  Adult Female Oviduct   16.9 20.43 14.9–16.0 Shorter White blood cells   [21]
  Adult Male Muscle   20.1 20.43 19.6–19.9 Similar White blood cells   [21]
  Adult Male Skin fibroblast   18.2 20.43 20.0–20.4 Similar White blood cells   [21]
  Fetal Embryonic cells    20.43 21.7–26.2 Longer White blood cells   [21]
Mouse Adult Cumulus   48 48 48 Similar    [17]