Abstract
Dryopteris blanfordii (C.Hope) C.Chr. is a member of the Dryopteridaceae, growing in high altitude Picea or Abies forests (2900–3500 m) in China and India. Phylogenetic relationships between D. blanfordii subsp. nigrosquamosa and closely related species of Dryopteris were investigated using a combined analysis of multiple molecular data sets (the protein-coding region of rbcL and matK genes and intergenic spacers psbA-trnH, trnP-petG, rps4-trnS, trnL-trnF and rbcL-accD). An assumption about the position of D. blanfordii subsp. nigrosquamosa within Dryopteris was made by using the Maximum Likelihood and Bayesian Inference approach and chloroplast marker sequences of Dryopteris species from GenBank. The results demonstrated that Asian taxa D. blanfordii subsp. nigrosquamosa and D. laeta as well as two American species D. arguta and D. marginalis belong to the same clade, all four of them being part of Dryopteris section Dryopteris.
Highlights
Dryopteris is a large fern genus of some 225–230 species belonging to the Dryopteridaceae (Fraser-Jenkins 1986, Kramer 1990, Zhang et al 2012)
The analysis demonstrated close relationships between D. blanfordii subsp. nigrosquamosa, D. laeta, D. marginalis and D. arguta
Dryopteris blanfordii subsp. nigrosquamosa is close to D. laeta, D. arguta and D. marginalis
Summary
Dryopteris is a large fern genus of some 225–230 species belonging to the Dryopteridaceae (Fraser-Jenkins 1986, Kramer 1990, Zhang et al 2012). Dryopteris blanfordii (C.Hope) C.Chr. grows in Picea or Abies forests at 2900–3500 m in China (Gansu, Sichuan, Xizang, Yunnan), Afghanistan, India, Kashmir, Nepal and Pakistan (Zhang et al 2013). It is divided into two subspecies, subsp. More than a quarter of a century ago, Fraser-Jenkins (1986) divided Dryopteris into several sections based on the comparison of macro- and micro-morphological traits. Marginatae) (Fraser-Jenkins 1986)
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