PHYLOGENY OF THE GENUS NOCCAEA (BRASSICACEAE) AND A CRITICAL REVIEW OF ITS GENERIC CIRCUMSCRIPTION

Autor(en): Ozudogru, Baris
Ozgisi, Kurtulus
Tarikahya-Hacioglu, Burcu
Ocak, Atilla
Mummenhoff, Klaus 
Al-Shehbaz, Ihsan A.
Stichwörter: BIOGEOGRAPHY; Brassicaceae; CHLOROPLAST DNA; CLASSIFICATION; Cruciferae; MOLECULAR PHYLOGENETICS; Noccaea; NUCLEAR; phylogeny; Plant Sciences; POSITION; RESTRICTION SITE VARIATION; SYNOPSIS; SYSTEMATICS; TAXONOMY; Thlaspi
Erscheinungsdatum: 2019
Herausgeber: MISSOURI BOTANICAL GARDEN
Enthalten in: ANNALS OF THE MISSOURI BOTANICAL GARDEN
Band: 104
Ausgabe: 3
Startseite: 339
Seitenende: 354
Zusammenfassung: 
Noccaea Moench is taxonomically one of the most problematic genera of the Brassicaceae. The radical revision of Thlaspi L. s.l. by Meyer in 1973 (Meyer, 1973) split it into 12 segregate genera, including Noccaea, but subsequent molecular studies suggested that this complex includes at least four unrelated genera (Thlaspi s. str., Mummenhoffia Esmailbegi & Al-Shehbaz, Noccidium F. K. Mey., and Noccaea). Although several taxonomic treatments have since been proposed to sort out the systematic problems of Noccaea, debates are still ongoing. Some authors have argued that all segregates of Thlaspi should be considered as independent but related genera, whereas others recognize them as synonyms of a large and polymorphic Noccaea. In this study, we present the first extensively sampled phylogenetic analysis of tribe Coluteocarpeae (Thlaspi segregates including Noccaea) using internal transcribed spacer (ITS) DNA sequences from 92 of the ca. 130 species (70%) in the tribe (39 studied here for the first time) and plastidic trnL-F regions from 73 species (42 studied here for the first time), representing the full range of morphological variation and geographical distribution. All main clades are discussed in detail, and the taxonomic status of all Thlaspi s.l. segregates is evaluated against recent taxonomic treatments. In particular, the tribal placement of Noccidium is changed to Coluteocarpeae, and the genus Pseudosempervivum (Boiss.) Grossh. is reduced to synonymy of Noccaea. The new name N. mummenhoffiana Ozudogru & Al-Shehbaz and the new combinations N. aucheri (Boiss.) Ozudogru & Al-Shehbaz and N. sempervivum (Boiss. & Balansa) Ozudogru & Al-Shehbaz are proposed.
ISSN: 00266493
DOI: 10.3417/2019347

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