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Updated: Feb 14, 2026

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
07:09

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq

Published on: May 28, 2021

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シルバーキメラのゲノムは,系統特異性性染色体とオプシン遺伝子の進化をホロケファランスで強調しています

Akinori Teramura1,2, Mitsutaka Kadota3, Shotaro Hirase1

  • 1Fisheries Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Shizuoka, Japan.

DNA research : an international journal for rapid publication of reports on genes and genomes
|February 13, 2026
PubMed
まとめ

研究者はシルバーキメラのゲノムを配列化し,深海視力の適応と最初のホロケファラン性染色体を明らかにしました. この研究は,脊椎動物のゲノム多様性と進化の理解を深める.

キーワード:
ホロケファリ (Holocephali) とは,ホロケファリ (Holocephali) とは,ホロケファリ (Holocephali) とは,ホロケファリ (Holocephali) とは,チメイラ・キメイラとはチョンドリッチ・ティヤン性染色体は性染色体である

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Fluorescence In Situ Hybridization on DNA Halo Preparations to Reveal Whole Chromosomes, Telomeres and Gene Loci09:07

Fluorescence In Situ Hybridization on DNA Halo Preparations to Reveal Whole Chromosomes, Telomeres and Gene Loci

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Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
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Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
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Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Chromosome Replication

Before a cell can divide, it must accurately replicate all of its chromosomes, including the DNA and its associated histone and non-histone proteins.  This process begins at numerous origins of replication during the S phase of the cell cycle in each of a cell’s chromosomes simultaneously. Certain nucleotides can act as origins of replication, but these sequences are not well defined - especially in complex, multi-cellular, eukaryotic species. The length of DNA that spans an origin...
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