Genki Ishihara

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The silkworm Bombyx mori uses a WZ sex determination system that is analogous to the one found in birds and some reptiles. In this system, males have two Z sex chromosomes, whereas females have Z and W sex chromosomes. The silkworm W chromosome has a dominant role in female determination, suggesting the existence of a dominant feminizing gene in this(More)
Previously, a novel macula-like virus was identified from Bombyx mori cultured cell line BmN and termed B. mori macula-like virus (BmMLV). BmMLV encodes a 6.5-kb-long positive, single-strand RNA genome, which contains putative RNA-dependent RNA polymerase (RdRp), coat protein (cp) and p15 genes. In this study, CP expression in several B. mori-derived cell(More)
The baculovirus cg30 gene is present in the genomes of most alphabaculoviruses. The gene product, CG30, contains two putative functional domains, a RING finger motif and a leucine zipper motif. A gene-knockout study in Autographa californica nucleopolyhedrovirus (AcMNPV) revealed that a cg30-disrupted virus did not show any striking differences compared(More)
The authors have proposed a fast spoken term detection that uses a suffix array as a data structure. This method enables very quick and memory saving search by using such techniques as keyword division, dynamic time warping, and employment of articulatoryfeature-based local distance definition. In this paper, we investigate a new approach that utilizes a(More)
The baculovirus ie2 gene is one of the immediate early genes, and its product is known to transactivate viral promoters. However, the roles of Bombyx mori nucleopolyhedrovirus (BmNPV) ie2 in insect larvae are poorly understood. Here we investigated the functions of BmNPV IE2 in cultured cells and in insect larvae using two mutant viruses, BmIE2D and(More)
Although some viruses have been shown to encode long non-coding RNAs (lncRNAs), how they function during their infection cycles remains elusive. We previously found an unexpectedly large number of novel transcripts, including putative lncRNAs, which were expressed from the genome of the baculovirus Bombyx mori nucleopolyhedrovirus (BmNPV). To investigate(More)
Today's computer systems have been greatly accelerated by various architectural features that exploit a huge amount of transistors. In order to further improve the performance, we need to devise architectural technologies that effectively utilize the hardware resources, because it is becoming difficult to speedup the program execution in proportion to the(More)
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