 In a study published in 2008 , Nina Rønsted and colleagues analysed the DNA sequences from the nuclear ribosomal internal and external transcribed spacers ( ITS and ETS ) , and the glyceraldehyde @-@ 3 @-@ phosphate dehydrogenase ( <unk> ) region , in the first molecular analysis of the section Malvanthera . They found F. obliqua to be most closely related to three species of the arid Northern Territory ( F. <unk> , F. <unk> and F. <unk> ) and classified it in a new series <unk> in the subsection <unk> . The species had remained a transitional rainforest species while its relatives radiated into dryer regions . 
