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Campanulales at AllExperts (204 words) |
 | The Campanulales are an order of the subclass Asteridae in the class Magnoliopsida flowering plants. |
| In Watson and Dallwitz this family has 1 genus, Pentaphragma with 30 species from southeast Asia. |
| Campanulales is not recognized as an order by the Angiosperm Phylogeny Group. |
| JGI - Why Sequence Campanulale Chloroplasts? (312 words) |
| Chloroplast gene order is highly conserved among virtually all land plants, and foreign DNA is not normally incorporated into the chloroplast genome. |
| In the Campanulales, however, inversions and other genome rearrangements occur exceptionally often, and these are commonly associated with the insertion of foreign DNA with open reading frames and a suite of other unusual characteristics. |
| In this group, the tempo of speciation has generally exceeded the tempo of genome rearrangement, such that almost every rearrangement step leading to a complex, highly rearranged extant genome occurred sequentially, has therefore been "preserved" in the phylogeny, and can be reconstructed by comparative analysis. |
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