The systematic relationships of glucosinolate-producing plants and related families: a cladistic investigation based on morphological and molecular characters

We found a number of inconsistencies that have been indicated in Appendix 1



Scholarcy highlights

  • During the last decade the classification of the Capparales and related families underwent important changes. [Note: APG used Brassicales instead of Capparales
  • Of the three genera for which only morphological data were available, all fell within the Sapindales: the fossil genus Dressiantha is resolved as sister to Anacardium; Boswellia is sister to Melia; and Ptelea is sister to Citrus
  • The position of Dressiantha in the morphological analysis is not as expected from previous analyses where it was associated with Brassicales
  • The combined core Brassicales and Batis–Salvadora clade are well supported by a number of synapomorphies, including reduction of stipules, the sequence of initiation of the sepals, merism, an extrastaminal nectary, saccate ovary with gynophore, often without or with very short style, a variable ovule orientation, a curved embryo, exotegmic seed coat, and vasculature of the gynoecium
  • For several morphological characters there is a progressive transformation across the clade and several characters have undergone reversals
  • Within Brassicales and Sapindales several well-supported subclades can be recognized which merit ordinal status. This would necessitate the present orders being recognized at the higher level of superorder: Malviflorae, Sapindiflorae and Brassiciflorae

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