Evolution of the long range structure of satellite DNAs in the genus Apodemus
Identifieur interne : 005102 ( Main/Exploration ); précédent : 005101; suivant : 005103Evolution of the long range structure of satellite DNAs in the genus Apodemus
Auteurs : H. J. Cooke [Royaume-Uni]Source :
- Journal of Molecular Biology [ 0022-2836 ] ; 1975.
English descriptors
- Teeft :
- Agarose, Band material, Biol, Complete digestion, Different degrees, Different families, Different sites, Digest, Digestion, Divergence, Dna, Doctoral thesis, Duplex, Gall atherton, Genus apodemus, Intermediate bands, Microps, Mouse satellite, Mouse satellite bands, Native material, Partial digests, Phylogenetic tree, Reassociated, Reassociated duplex, Reassociated material, Reassociation, Relative mobility, Restriction, Restriction band, Restriction endonuolease, Restriction enzymes, Restriction fragments, Restriction site, Restriction sites, Satellite, Satellite dnas, Sequence families, Sigma chemical, Size class, Strong bands, Sutton mccallum, Sylvaticus, Total dnas, Unequal.
Abstract
Abstract: DNAs from mice in the genus Apodemus show bands when digests of total DNA with a variety of restriction enzymes are analysed by agarose gel electrophoresis. From the observed patterns a phylogenetic tree can be drawn. In two species, A. sylvaticus and A. flavicollis, the bands with restriction endonuclease from Haemophilus influenzae (Hind III) are integral multiples of a size of 370 base-pairs and derive from satellite DNAs. Divergence in the satellite DNA sequence can be estimated from the proportions of the monomer, dimer and trimer, and from the thermal stability of the DNAs after reassociation. There is a marked difference between the melting behaviour of A. sylvaticus and A. flavicollis DNAs and it is suggested that this is due to the presence of a number of related families of sequences in A. sylvaticus satellite DNA but only one family in A. flavicollis. The observation that these different families of repeated sequences have the same periodicity is consistent with the view that unequal crossing-over is responsible for their evolution into separate families.
Url:
DOI: 10.1016/0022-2836(75)90406-4
Affiliations:
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J." last="Cooke">H. J. Cooke</name><affiliation wicri:level="2"><country>Royaume-Uni</country><placeName><region type="country">Écosse</region></placeName><wicri:cityArea>Medical Research Council Mammalian Genome Unit Department of Zoology, University of Edinburgh, West Mains Road Edinburgh</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Molecular Biology</title><title level="j" type="abbrev">YJMBI</title><idno type="ISSN">0022-2836</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1975">1975</date><biblScope unit="volume">94</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="87">87</biblScope><biblScope unit="page" to="88">88</biblScope></imprint><idno type="ISSN">0022-2836</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-2836</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Agarose</term><term>Band material</term><term>Biol</term><term>Complete digestion</term><term>Different degrees</term><term>Different families</term><term>Different sites</term><term>Digest</term><term>Digestion</term><term>Divergence</term><term>Dna</term><term>Doctoral thesis</term><term>Duplex</term><term>Gall atherton</term><term>Genus apodemus</term><term>Intermediate bands</term><term>Microps</term><term>Mouse satellite</term><term>Mouse satellite bands</term><term>Native material</term><term>Partial digests</term><term>Phylogenetic tree</term><term>Reassociated</term><term>Reassociated duplex</term><term>Reassociated material</term><term>Reassociation</term><term>Relative mobility</term><term>Restriction</term><term>Restriction band</term><term>Restriction endonuolease</term><term>Restriction enzymes</term><term>Restriction fragments</term><term>Restriction site</term><term>Restriction sites</term><term>Satellite</term><term>Satellite dnas</term><term>Sequence families</term><term>Sigma chemical</term><term>Size class</term><term>Strong bands</term><term>Sutton mccallum</term><term>Sylvaticus</term><term>Total dnas</term><term>Unequal</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: DNAs from mice in the genus Apodemus show bands when digests of total DNA with a variety of restriction enzymes are analysed by agarose gel electrophoresis. From the observed patterns a phylogenetic tree can be drawn. In two species, A. sylvaticus and A. flavicollis, the bands with restriction endonuclease from Haemophilus influenzae (Hind III) are integral multiples of a size of 370 base-pairs and derive from satellite DNAs. Divergence in the satellite DNA sequence can be estimated from the proportions of the monomer, dimer and trimer, and from the thermal stability of the DNAs after reassociation. There is a marked difference between the melting behaviour of A. sylvaticus and A. flavicollis DNAs and it is suggested that this is due to the presence of a number of related families of sequences in A. sylvaticus satellite DNA but only one family in A. flavicollis. The observation that these different families of repeated sequences have the same periodicity is consistent with the view that unequal crossing-over is responsible for their evolution into separate families.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country><region><li>Écosse</li></region></list><tree><country name="Royaume-Uni"><region name="Écosse"><name sortKey="Cooke, H J" sort="Cooke, H J" uniqKey="Cooke H" first="H. J." last="Cooke">H. J. Cooke</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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