Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
Zbornik - Društvo genetičara Srbije
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62 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE II-Pos-7<br />
Subotica, 30. novembar - 4. decembar 2004.<br />
INTRA-INDIVIDUALNI MOZAICIZAM U BROJU B HROMOZOMA KOD<br />
UTOGRLOG MIŠA, Apodemus flavicollis (Rodentia, Mammalia)<br />
M. Vujoševiæ i Jelena Blagojeviæ<br />
Institut za biološka istraiivanja «Siniša Stankoviæ», Beograd<br />
Populacije utoglog miša, Apodemus flavicollis, karakteriše èesto prisustvo B hromozoma.<br />
Frekvenca intra-individualnog mozaicizma B hromozoma ispitana je kod 995<br />
ivotinja sakupljenih na 6 lokaliteta u Srbiji. Naðeno je da 33.06% ivotinja ima B<br />
hromozome. Meðu njima je 26.44% bilo mozaièno. Ukupno 32 mozaiène ivotinje, koje<br />
su imale više od jednog B hromozoma, analizirane su u odnosu na distribuciju B<br />
hromozoma. Utvrðeno je da je distribucija B hromozoma razlièita meðu grupama<br />
ivotinja sa razlièitim brojem B hromozoma i raste sa brojem B hromozoma. Frekvenca<br />
mozaika je u rasponu od 0.22 do 0.25 i razlikuje se meðu lokalitetima.<br />
INTRA INDIVIDUAL MOSAICISM IN THE NUMBER OF B CHROMOSOMES<br />
IN YELLOW-NECKED MOUSE, Apodemus flavicollis (Rodentia, Mammalia)<br />
Populations of yellow-necked mouse, Apodemus flavicollis are characterized by frequent<br />
appearance of B chromosomes (Bs). Frequency of intra individual mosaicism of Bs was<br />
studied in 995 animals collected at six localities in Serbia. It was found that 33.06% were<br />
with B chromosomes. Among them 26.44% were mosaics. Total of 32 mosaic animals<br />
with more than one B chromosome were analyzed for distribution of Bs and it was found<br />
that distribution of mosaics is quite different between groups of animals with different<br />
number of Bs and is increasing with number of Bs. Frequency of mosaics differ between<br />
localities and is in the range from 0.22 to 0.55.