2010-03-10 19:05 The genetic transformation of wild species has occurred as humans have used individuals carrying favorable gene variants for breeding purposes. In the current issue of Nature an international team led by Swedish researchers has revealed some of the secrets underlying the remarkable development of the domestic chicken.
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pm_kyckling
2010-03-10 18:55
Fotograf/Källa:Uppsala universitet
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Två selektionslinjer höns, härstammande från en gemensam ursprungslinje, har ingått i studien. Efter 40 generationers selektivt urval visar de två linjerna en nästan tiofaldig skillnad i kroppsvikt vid åtta veckors ålder. These lines were developed from a common ancestor and show a ten-fold difference in body weight at eight weeks of age after 40 generations of selections for low or high growth.
