Du. Kloos et al., DISTANCE BETWEEN ALLELES AS A DETERMINANT OF LINKAGE IN NATURAL TRANSFORMATION OF ACINETOBACTER-CALCOACETICUS, Journal of bacteriology, 177(20), 1995, pp. 6015-6017
Cotransformation frequencies of 16, 39, 51, and 60% were observed when
donor alleles were separated by distances of 9.2, 7.4, 6.3, and 5.1 k
b, respectively, in donor Acinetobacter calcoaceticus DNA. A different
and unexpected pattern was observed when the distance between recipie
nt alleles was reduced from 9.2 to 5.1 kb. Ligation of unlinked chromo
somal DNA fragments allowed them to be linked genetically through natu
ral transformation.