Reopening an old chapter: a revised taxonomic and evolutionary concept of the Rubus montanus group

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583465" target="_blank" >RIV/61989592:15310/17:73583465 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027006:_____/17:00004178

Výsledek na webu

<a href="http://www.preslia.cz/P174Kiraly.pdf" target="_blank" >http://www.preslia.cz/P174Kiraly.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23855/preslia.2017.309" target="_blank" >10.23855/preslia.2017.309</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reopening an old chapter: a revised taxonomic and evolutionary concept of the Rubus montanus group

Popis výsledku v původním jazyce

The triploid complex of Rubus montanus (Rubus ser. Discolores, Rosaceae) is a particularly intricate group due to its plasticity and variability. The representatives of this group are, notwithstanding the high number of taxon names published, often considered a single species (Rubus montanus s.l.). In the course of extensive field studies and herbarium revisions we revealed three widely distributed morphologically defined types that were formerly incorporated in R. montanus s.l. but should be treated as separate species. We analysed them using both morphological and genetic methods. We found that the species examined are identical with the formerly described R. montanus Lib. ex Lej., R. bicolor Opiz and R. velutinus Vest ex Tratt., and provide a taxonomic reassessment, discussion of synonymy and typification of certain taxon names, and complete their morphological description, ecological characteristics and distribution. We show that the morphological delimitation of the triploid Discolores microspecies is highly compatible with molecular evidence for the independent sexual origin of these units (or, rarely, extensive mutational diversification). On the contrary, the intraspecific genetic variation is rather low and only mutational, and confirms their strictly apomictic reproduction. Nevertheless, mutational load may be substantial and mutation-based and recombination-based variation overlap in some instances. Highly variable molecular genetic markers such as microsatellites are recommended as an additional line of evidence for species delimitation in any further taxonomical studies on other groups of brambles.

Název v anglickém jazyce

Reopening an old chapter: a revised taxonomic and evolutionary concept of the Rubus montanus group

Popis výsledku anglicky

The triploid complex of Rubus montanus (Rubus ser. Discolores, Rosaceae) is a particularly intricate group due to its plasticity and variability. The representatives of this group are, notwithstanding the high number of taxon names published, often considered a single species (Rubus montanus s.l.). In the course of extensive field studies and herbarium revisions we revealed three widely distributed morphologically defined types that were formerly incorporated in R. montanus s.l. but should be treated as separate species. We analysed them using both morphological and genetic methods. We found that the species examined are identical with the formerly described R. montanus Lib. ex Lej., R. bicolor Opiz and R. velutinus Vest ex Tratt., and provide a taxonomic reassessment, discussion of synonymy and typification of certain taxon names, and complete their morphological description, ecological characteristics and distribution. We show that the morphological delimitation of the triploid Discolores microspecies is highly compatible with molecular evidence for the independent sexual origin of these units (or, rarely, extensive mutational diversification). On the contrary, the intraspecific genetic variation is rather low and only mutational, and confirms their strictly apomictic reproduction. Nevertheless, mutational load may be substantial and mutation-based and recombination-based variation overlap in some instances. Highly variable molecular genetic markers such as microsatellites are recommended as an additional line of evidence for species delimitation in any further taxonomical studies on other groups of brambles.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/LO1204" target="_blank" >LO1204: Udržitelný rozvoj výzkumu v Centru regionu Haná</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

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

89

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

23

Strana od-do

309-331

Kód UT WoS článku

000417935400002

EID výsledku v databázi Scopus

—