Reinterpretation of Potamogeton xnerviger: solving a taxonomic puzzle after two centuries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10389861" target="_blank" >RIV/00216208:11310/18:10389861 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.23855/preslia.2018.135" target="_blank" >https://doi.org/10.23855/preslia.2018.135</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23855/preslia.2018.135" target="_blank" >10.23855/preslia.2018.135</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reinterpretation of Potamogeton xnerviger: solving a taxonomic puzzle after two centuries

Popis výsledku v původním jazyce

Hybrids form an important component of Potamogeton diversity but their exact taxonomic identities and distributions are often insufficiently known. Potamogeton nerviger was described from Lithuania in 1827 as a proper species. Based on morphological and anatomical characters, its interpretation has since varied, ranging from synonymization with other species to identification as different hybrids and intraspecific taxa. Currently, it is universally recognized as the hybrid P. alpinus x P. lucens. Using a combined molecular, morphological and anatomical investigation we re-examined the identity of P. xnerviger, based on both original and recent plant material. We report a successful amplification and sequencing of nuclear ribosomal ITS1 region from a 188-year-old type collection. This was shown to be genetically identical to the morphologically matching plants recently collected at the type locality. Comparison with molecular characters of the possible parental species shows that P. xnerviger is not P. alpinus x P. lucens, as currently believed, but another hybrid, P. nodosus x P. perfoliatus, which is currently called P. xassidens. This molecular identification is also supported by anatomical evidence. In contrast, the actual existence of the hybrid P. alpinus x P. !wens is doubtful. Consequences for nomenclature and identities of records reported from other sites are discussed.

Název v anglickém jazyce

Reinterpretation of Potamogeton xnerviger: solving a taxonomic puzzle after two centuries

Popis výsledku anglicky

Hybrids form an important component of Potamogeton diversity but their exact taxonomic identities and distributions are often insufficiently known. Potamogeton nerviger was described from Lithuania in 1827 as a proper species. Based on morphological and anatomical characters, its interpretation has since varied, ranging from synonymization with other species to identification as different hybrids and intraspecific taxa. Currently, it is universally recognized as the hybrid P. alpinus x P. lucens. Using a combined molecular, morphological and anatomical investigation we re-examined the identity of P. xnerviger, based on both original and recent plant material. We report a successful amplification and sequencing of nuclear ribosomal ITS1 region from a 188-year-old type collection. This was shown to be genetically identical to the morphologically matching plants recently collected at the type locality. Comparison with molecular characters of the possible parental species shows that P. xnerviger is not P. alpinus x P. lucens, as currently believed, but another hybrid, P. nodosus x P. perfoliatus, which is currently called P. xassidens. This molecular identification is also supported by anatomical evidence. In contrast, the actual existence of the hybrid P. alpinus x P. !wens is doubtful. Consequences for nomenclature and identities of records reported from other sites are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Preslia

ISSN

0032-7786

e-ISSN

—

Svazek periodika

90

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

15

Strana od-do

135-149

Kód UT WoS článku

000439008500003

EID výsledku v databázi Scopus

2-s2.0-85047342104