This yields a co-isogenic line (the entire genetic background is derived from the recipient strain, except for the mutated nucleotides), which is superior to generating a congenic line by breeding, in which much "passenger" DNA remains from the originating strain.
In addition, Culex mosquitoes are a "foul water species," thriving in dry conditions by breeding in standing water in old tires or pooled in tire tracks [ 10, 20].
Therefore, we generated Rec-HYα, H-Y TCRβ, TCR Cα-deficient, Bim-deficient mice (Rec-HY Bim-deficient) by breeding, in order to evaluate the role of Bim during negative selection in our model.
These mosquitoes thrive in tropical urban areas by breeding in uncovered containers capable of holding rain water, such as tires, buckets, flower pots, etc. [ 1].
The highly specialized reproductive behaviour [ 2] and low fertility make it difficult to increase their numbers quickly by breeding in captivity.
Studies on the social dynamics induced by breeding in large groups have shown that the size of the group is not the only factor behind the appearance of aggressive behaviors.
You can no more save a species by breeding it in a zoo than you can by retrieving DNA from a museum specimen, or implanting embryos of wild cattle species into domestic cattle.
A rat model of passive smoking was prepared by breeding male rats in a cigarette-smoking box.
A rat model of passive cigarette smoking was prepared by breeding female rats in a cigarette-smoking box for 2, 3 or 4 months.
They inbred the resulting creature, recycling it by breeding first-cousins in a consistent pattern that meant – for all intents – you were getting the same mouse born over and over again.
