Genomic diversity, lifestyles and evolutionary origins of DPANN archaea
نویسندگان
چکیده
منابع مشابه
Evolutionary Origins of Genomic Repertoires in Bacteria
Explaining the diversity of gene repertoires has been a major problem in modern evolutionary biology. In eukaryotes, this diversity is believed to result mainly from gene duplication and loss, but in prokaryotes, lateral gene transfer (LGT) can also contribute substantially to genome contents. To determine the histories of gene inventories, we conducted an exhaustive analysis of gene phylogenie...
متن کاملEvolutionary Patterns in the Sequence and Structure of Transfer RNA: Early Origins of Archaea and Viruses
Transfer RNAs (tRNAs) are ancient molecules that are central to translation. Since they probably carry evolutionary signatures that were left behind when the living world diversified, we reconstructed phylogenies directly from the sequence and structure of tRNA using well-established phylogenetic methods. The trees placed tRNAs with long variable arms charging Sec, Tyr, Ser, and Leu consistentl...
متن کاملDNA replication origins in archaea
DNA replication initiation, which starts at specific chromosomal site (known as replication origins), is the key regulatory stage of chromosome replication. Archaea, the third domain of life, use a single or multiple origin(s) to initiate replication of their circular chromosomes. The basic structure of replication origins is conserved among archaea, typically including an AT-rich unwinding reg...
متن کاملComparative Evolutionary Analysis of Organellar Genomic Diversity in Green Plants
Endosymbiotic bacteria have been reported with extraordinary reduced genome in numerous cases. Many endosymbiotic green algae also show extreme genomic reduction of their nuclear genomes, but they may retain a fully functional plastid genome if they maintain photosynthetic ability or if they can survive outside of their host. In order to better understand how the endosymbiotic lifestyle has aff...
متن کاملSex-Biased Evolutionary Forces Shape Genomic Patterns of Human Diversity
Comparisons of levels of variability on the autosomes and X chromosome can be used to test hypotheses about factors influencing patterns of genomic variation. While a tremendous amount of nucleotide sequence data from across the genome is now available for multiple human populations, there has been no systematic effort to examine relative levels of neutral polymorphism on the X chromosome versu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 2019
ISSN: 1574-6968
DOI: 10.1093/femsle/fnz008