Learn More
The relative organization of genes and repetitive DNAs in complex eukaryotic genomes is not well understood. Diagnostic sequencing indicated that a 280-kilobase region containing the maize Adh1-F and u22 genes is composed primarily of retrotransposons inserted within each other. Ten retroelement families were discovered, with reiteration frequencies ranging(More)
Retrotransposons are a class of mobile DNA sequences in eukaryotes that transpose through a reverse-transcribed RNA intermediate. Retrotransposons containing long terminal repeats have many of the attributes of retroviruses in animals but have not been previously observed to acquire a portion of a cellular gene as RNA tumor viruses do with oncogenes. We(More)
The advent of next-generation sequencing has brought about an explosion of single nucleotide polymorphism (SNP) data in non-model organisms; however, profiling these SNPs across multiple natural populations still requires substantial time and resources. Here, we introduce two cost-efficient quantitative High Resolution Melting (qHRM) methods for measuring(More)
The current lack of understanding of the genetic basis underlying environmental stress tolerance in reef-building corals impairs the development of new management approaches to confronting the global demise of coral reefs. On the Great Barrier Reef (GBR), an approximately 51% decline in coral cover occurred over the period 1985-2012. We conducted a(More)
Hardness ratios are commonly used in X-ray photometry to indicate spectral properties roughly. It is usually defined as the ratio of counts in two different wavebands. This definition, however, is problematic when the counts are very limited. Here we instead define hardness ratio using the λ parameter of Poisson processes, and develop an estimation method(More)
Chandra Galactic Center Survey detected ∼ 800 X-ray point-like sources in the 2 • × 0.8 • sky region around the Galactic Center. In this paper, we study the spatial and luminosity distributions of these sources according to their spectral properties. Fourteen bright sources detected are used to fit jointly an absorbed power-law model, from which the(More)
  • 1