Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/21701
Tipo: Artigo
Título: Hiya: A new genus segregated from Hypolepis in the fern family Dennstaedtiaceae, based on phylogenetic evidence and character evolution
Autor(es): Schwartsburd, Pedro B.
Shang, Hui
Sundue, Michael
Wei, Ran
Wei, Xue-Ping
Liu, Li
Yan, Yue-Hong
Zhang, Xian-Chun
Luo, Jun-Jie
Abstract: The relationship of Hypolepis brooksiae, H. nigrescens, and H. scabristipes to the remainder of Hypolepis (Dennstaedtiaceae) has been questioned by previous authors based on their unique combination of morphological characters and different base chromosome number. Using four chloroplast genes including rbcL, atpA, rpL6, and rps4-trnS intergenic spacer (IGS) from 32 samples, representing 24 species of Dennstaedtiaceae, we recovered a clade comprising H. brooksiae and H. nigrescens, distinct from the remaining species of Hypolepis. This clade is resolved as sister to the clade comprising Blotiella, Paesia and Histiopteris. We reconstructed ancestral states of 16 morphological characters and found that this clade is distinguished by indeterminate, scandent leaves exhibiting rhythmic growth, provided with recurved black-tipped prickles, and stipule-like pinnules that protect the emerging crosier and pinnae departures, rachis-costa architecture where the adaxial sulcus is confluent with the next lower order, and a base chromosome number of x = 29. In light of this molecular and morphological evidence, we describe a new genus, Hiya, and provide nomenclatural combinations to accommodate the three known species segregated from Hypolepis: Hiya brooksiae, Hiya nigrescens, and Hiya scabristipes.
Palavras-chave: Hiya brooksiae
Hiya nigrescens
Hiya scabristipes
Morphology
Phylogeny
Systematics
Editor: Molecular Phylogenetics and Evolution
Tipo de Acesso: Elsevier B.V.
URI: https://doi.org/10.1016/j.ympev.2018.04.038
http://www.locus.ufv.br/handle/123456789/21701
Data do documento: 1-Mai-2018
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