The role of structurally dynamic genomic regions in speciation is poorly understood due to challenges inherent in diploid genome assembly. Here we reconstructed the evolutionary dynamics of structural variation in five cat species by phasing the genomes of three interspecies F1 hybrids to generate near-gapless single-haplotype assemblies. We discerned that cat genomes have a paucity of segmental duplications relative to great apes, explaining their remarkable karyotypic stability.
View Article and Find Full Text PDFPlaty-1 retroposons are short interspersed elements (SINEs) unique to platyrrhine primates. Discovered in the common marmoset () genome in 2016, these 100 bp mobile element insertions (MEIs) appeared to be novel drivers of platyrrhine evolution, with over 2200 full-length members across 62 different subfamilies, and strong evidence of ongoing proliferation in . Subsequent characterization of Platy-1 elements in , and genera, suggested that the widespread mobilization detected in marmoset (family Callithrichidae) was perhaps an anomaly.
View Article and Find Full Text PDFQuantized nanolaminates are a type of optical metamaterials, which were discovered only recently. Their feasibility was demonstrated by atomic layer deposition and ion beam sputtering so far. In this paper, we will report on the successful magnetron sputter deposition of quantized nanolaminates based on TaO-SiO.
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