TY - JOUR
AU - Clegg, M T
AB -  Our present knowledge of the organization of genetic information on chloro­ plast DNA rests almost exclusively on the application of molecular cloning and nucleotide sequencing technologies. Restriction mapping and cloning confirmed the circular nature of the DNA molecule and established that the size of the DNA varies between 120 kb and 190 kb in flowering plant species (27, 42). This range in size is largely accounted for by differences in the extent of reiteration of a significant portion of the genome, which is referred to as the inverted repeat region. The repeated region is unusual only in that it includes the genes for the 4.5S, 5S, 16S, and 23S rRNAs, and its absence in at least one genome indicates that it is not an essential feature of the genome (27). Nucleotide sequencing of cloned chloroplast DNAs is complete for two genomes (26, 34) and reveals the presence of about 50 protein-coding genes and genes for 30 different tRNAs. Sequences for defined regions of many other genomes have also been completed (see below). The above studies have defined the nature and organization of genes encoded by chloroplast DNA to the extent of fixing their primary structure and, by identifying 
TI - Evolution of Higher-Plant Chloroplast DNA-Encoded Genes: Implications for Structure-Function and Phylogenetic Studies
JF - Annual Review of Plant Biology
DO - 10.1146/annurev.pp.38.060187.002135
DA - 1987-06-01
UR - https://www.deepdyve.com/lp/annual-reviews/evolution-of-higher-plant-chloroplast-dna-encoded-genes-implications-1qbStSMyGe
SP - 391
EP - 418
VL - 38
IS - 1
DP - DeepDyve
ER -