title: Conservation of 70S ribosomal RNA genes in the chloroplast DNAs of higher plants.
abstract: Chloroplast DNAs of higher plants have been found to contain two chloroplast ribosomal RNA genes. The base sequences of these chloroplast ribosomal RNA genes in chloroplast DNAs have been studied by molecular hybridization. The results have shown that these genes have undergone little divergence in the evolution of either monocotyledonous or dicotyledonous plants.
mesh_terms: D001483:Base Sequence; D005075:Biological Evolution; D002499:Centrifugation, Density Gradient; D002736:Chloroplasts / Q000378:metabolism*; D004247:DNA / Q000302:isolation & purification / Q000378:metabolism*; D005796:Genes; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D009711:Nucleotides / Q000032:analysis; D010761:Phosphorus Radioisotopes; D063245:Plant Development; D011119:Polynucleotides / Q000032:analysis; D012335:RNA, Ribosomal / Q000032:analysis / Q000096:biosynthesis* / Q000302:isolation & purification; D013696:Temperature
chemical_list: D009711:Nucleotides; D010761:Phosphorus Radioisotopes; D011119:Polynucleotides; D012335:RNA, Ribosomal; D004247:DNA