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Cited by 931

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Origin and evolution of the adaptive immune system: genetic events and selective pressures

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Flajnik, Martin F., Kasahara, Masanori·2010·Nature Reviews Genetics

Abstract

The adaptive immune system (AIS) in mammals, which is centred on lymphocytes bearing antigen receptors that are generated by somatic recombination, arose approximately 500 million years ago in jawed fish. This intricate defence system consists of many molecules, mechanisms and tissues that are not present in jawless vertebrates. Two macroevolutionary events are believed to have contributed to the genesis of the AIS: the emergence of the recombination-activating gene (RAG) transposon, and two rounds of whole-genome duplication. It has recently been discovered that a non-RAG-based AIS with similarities to the jawed vertebrate AIS — including two lymphoid cell lineages — arose in jawless fish by convergent evolution. We offer insights into the latest advances in this field and speculate on the selective pressures that led to the emergence and maintenance of the AIS.

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Crossref · 10.1038/nrg2703

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Metadata

Authors
Flajnik, M. F., & Kasahara, M.
Venue
Nature Reviews Genetics
Published
2009-12-08
Volume
11
Issue
1
Pages
47-59
ISSN
  • 1471-0056 (ISSN-L)
  • 1471-0064
OpenAlex
W2024875935
Cited by
931
References
8
FWCI
1.74
Type
journal article
Language
en
Open access
green

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