{"fact":"A single region in the crow genome harbors 81 out of 82 fixed genetic differences between the two subspecies, spotlighting genes tied to color and vision.","context":"One prominent genomic region (<2 megabases) harbored 81 of all 82 fixed differences (of 8.4 million single-nucleotide polymorphisms in total), linking genes involved in pigmentation and in visual perception.","source":"J. W. Poelstra; N. Vijay; C. M. Bossu; H. Lantz; B. Ryll; I. Müller; V. Baglione; P. Unneberg; M. Wikelski; M. G. Grabherr; J. B. W. Wolf, The genomic landscape underlying phenotypic integrity in the face of gene flow in crows, 10.1126/science.1253226","index":655}