| Literature DB >> 1542683 |
D B Stein1, D S Conant, M E Ahearn, E T Jordan, S A Kirch, M Hasebe, K Iwatsuki, M K Tan, J A Thomson.
Abstract
The chloroplast genome of most land plants is highly conserved. In contrast, physical and gene mapping studies have revealed a highly rearranged chloroplast genome in species representing four families of ferns. In all four, there has been a rare duplication of the psbA gene and the order of the psbA, 16S, and 23S rRNA genes has been inverted. Our analysis shows that the described rearrangement results from a minimum of two inversions within the inverted repeat. This chloroplast DNA structure provides unambiguous evidence that phylogenetically links families of ferns once thought to belong to different major evolutionary lineages.Entities:
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Year: 1992 PMID： 1542683 PMCID： PMC48552 DOI： 10.1073/pnas.89.5.1856
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205