Studies of genes for wool color and fertility in Swedish sheep
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Short summary
We have been able to collect samples from all 15 Swedish sheep breeds. We are currently analysing the genetic variation and the relationships between breeds using these samples. The samples are also used to analyse genes for coat colour and fertility.
Coat color
Several genes that affect coat color in sheep are known. Two of the genes are sequenced in several Swedish sheep breeds. We have chosen to study sheep with black, white, gray or brown coat color. The aim is to identify which changes in the genes result in black, gray and brown coat color. We are also studying data from whole genome sequencing.
Fertility
Some sheep breeds only lamb in the spring. Other breeds can lamb all year round. Some foreign studies have shown that the MTNR1A gene may be involved in this. In Alexander Falk's thesis he examined a small section of this gene in three Swedish sheep breeds. Currently we are studying genes that affect litter size in sheep.