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Identification of Astrotactin2 as a Genetic Modifier That Regulates the Global Orientation of Mammalian Hair Follicles

September 29, 2015

Identification of Astrotactin2 as a Genetic Modifier That Regulates the Global Orientation of Mammalian Hair Follicles

Hao Chang and colleagues observe that some Frizzled6 mutant mice exhibit an unusual hair pattern in which all of the hair follicles on the posterior half of the back have reversed orientations, and identify a single spontaneous mutation that accounts for this reversal.

Image credit: Hao Chang and colleagues

09/17/2015

research article

Recurrent Domestication by Lepidoptera of Genes from Their Parasites Mediated by Bracoviruses

Laila Gasmi and colleagues show that bracovirus DNA sequences have been inserted repeatedly into lepidopteran genomes. The virus is used by parasitic wasps to inhibit caterpillar host immune defenses when laying their eggs. This horizontal gene transfer leads to acquisition of a novel gene from another species, allowing acquisition of novel traits.

Recurrent Domestication by Lepidoptera of Genes from Their Parasites Mediated by Bracoviruses

Image credit: The White House Flickr Public Domain