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Updated: Feb 14, 2026

Molecular Evolution of the Tre Recombinase
Published on: May 29, 2008
Molecular systematics and the evolution of mycoheterotrophy of tribe Neottieae (Orchidaceae, Epidendroideae)
1State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P. R. China.
Abstract:
Neottieae comprise about 150-200 species and are distributed mainly in temperate and subtropical zones of the northern hemisphere. Mycoheterotrophy is common in Neottieae. Based on three DNA markers and a broad sampling of Neottieae, these results indicate that Neottieae is strongly supported as monophyletic and Palmorchis is sister to the remaining genera of Neottieae. Holopogon and Neottia s.s. are deeply nested within Listera. The habit of leafless mycotrophy has independently evolved at least three times in Neottieae, one in Cephalanthera, another in Neottia s.l. and the third in the clade formed by Limodorum and Aphyllorchis.
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