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What is Allium paniculatum ? Establishing taxonomic and molecular phylogenetic relationships within A . sect. Codonoprasum
Author(s) -
Salmeri Cristina,
Brullo Cristian,
Brullo Salvatore,
Galdo Giampietro Giusso Del,
Moysiyenko Ivan I.
Publication year - 2016
Publication title -
journal of systematics and evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.249
H-Index - 46
eISSN - 1759-6831
pISSN - 1674-4918
DOI - 10.1111/jse.12170
Subject(s) - biology , taxon , herbarium , botany , phylogenetic tree , maximum parsimony , bract , clade , evolutionary biology , inflorescence , biochemistry , gene
Allium paniculatum L. is commonly recorded from the Euro‐Mediterranean and Irano‐Turanian regions. Evidence from literature and herbarium collections revealed that many different taxa of A . sect. Codonoprasum Rchb., all characterized by big size, diffuse and densely flowered umbrella, very long spathe valves, long pedicels, and cylindrical‐campanulate perigon, have been wrongly attributed to this species thus affecting records on its geographic distribution and morphological characterization. In order to define the true identity of A. paniculatum , we analyzed specimens coming from the type locality (Don River), and provided details on morphology, ecology, karyology, leaf anatomy, seed morphology and seed coat micro‐sculpturing. Taxonomic and phylogenetic relationships with related species of sect. Codonoprasum and with other taxa of different sections were investigated by means of morphological characters and molecular data from the internal transcribed spacers (ITS) nrDNA and the trnH‐psbA cpDNA region. Maximum parsimony and Bayesian inference analyses of molecular data recovered two main clades in A . sect. Codonoprasum and clearly separated A. paniculatum from related taxa. The taxonomic implications of these patterns of relationships are discussed. To our knowledge, this is the first study documenting in‐depth phylogenetic relationships within A . sect. Codonoprasum .