Zea Ribosomal Repeat Evolution and Substitution Patterns (Record no. 42897)

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fixed length control field 01562nam a2200181Ia 4500
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control field MX-MdCICY
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control field 20250625124723.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-8593
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Title Zea Ribosomal Repeat Evolution and Substitution Patterns
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Volume/sequential designation Mol. Biol. Evol. , 13, p.623-632, 1996
520 3# - SUMMARY, ETC.
Summary, etc. Zea and Tripsacum nuclear ribosomal internal transcribed spacer (ITS)sequences were used to evaluate patterns of concerted evolution, rates of substitutions, patterns of methylation-induced deamination, and structural constraints of the ITS. ITS pseudogenes were identified by their phylogenetic position, differences in nucleotide composition, extensive deamination at ancestral methylation sites, and substitutions resulting in low-stability secondary RNA structures. Selection was important in shaping the kinds of polymorphisms and substitutions observed in the ITS. ITS substitution rates were significantly different among the Zea taxa. Deamination of cytosines at methylation sites was a potent mutation source, but selection appeared to maintain high methylation site density throughout the ribosomal repeat except for the gene promoter. Nucleotide divergence statistics identified selectively constrained regions at the 5' ends of the ITS1 and ITS2.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Buckler, E.S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Holtsford, T.P.
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Uniform Resource Identifier <a href="https://drive.google.com/file/d/1H79j9p5_3wwlYcbCcdBmVGX-TMKdYhJf/view?usp=drivesdk">https://drive.google.com/file/d/1H79j9p5_3wwlYcbCcdBmVGX-TMKdYhJf/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-8593 25.06.2025 25.06.2025 Documentos solicitados