Intra-individual polymorphism in diploid and apomictic polyploid hawkweeds (Hieracium, Lactuceae, Asteraceae): disentangling phylogenetic signal, reticulation, and noise

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A10000513" target="_blank" >RIV/00216208:11310/09:10000513 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/09:00332806

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Intra-individual polymorphism in diploid and apomictic polyploid hawkweeds (Hieracium, Lactuceae, Asteraceae): disentangling phylogenetic signal, reticulation, and noise

Popis výsledku v původním jazyce

The first molecular phylogeny of Hieracium s.str. based on diploids and polyploids of supposed non-hybrid origin (?basic species?) is presented. The group is split into two major clades roughly corresponding to species with Eastern or Western European origin. Contrary to expectation, abundant evidence for hybridization was found; most of it concerned parental combinations from both groups. Survival in different glacial refugia, and speciation and hybridization (accompanied by polyploidization and apomixis) as a result of secondary contact are probable. The data also show evidence of extinct taxa that have left their molecular traces in contemporary hybrids and suggest the presence of a much larger range of ancestral diploids in former times. Prominentintra-individual variation in a multicopy nuclear region required detailed character state analysis in order to distinguish phylogenetic signal from hybrid origin and homoplasy.

Název v anglickém jazyce

Intra-individual polymorphism in diploid and apomictic polyploid hawkweeds (Hieracium, Lactuceae, Asteraceae): disentangling phylogenetic signal, reticulation, and noise

Popis výsledku anglicky

The first molecular phylogeny of Hieracium s.str. based on diploids and polyploids of supposed non-hybrid origin (?basic species?) is presented. The group is split into two major clades roughly corresponding to species with Eastern or Western European origin. Contrary to expectation, abundant evidence for hybridization was found; most of it concerned parental combinations from both groups. Survival in different glacial refugia, and speciation and hybridization (accompanied by polyploidization and apomixis) as a result of secondary contact are probable. The data also show evidence of extinct taxa that have left their molecular traces in contemporary hybrids and suggest the presence of a much larger range of ancestral diploids in former times. Prominentintra-individual variation in a multicopy nuclear region required detailed character state analysis in order to distinguish phylogenetic signal from hybrid origin and homoplasy.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F05%2F0657" target="_blank" >GA206/05/0657: Molekulární fylogeneze a evoluční trendy rodu Hieracium (Asteraceae, Lactuceae)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

BMC Evolutionary Biology

ISSN

1471-2148

e-ISSN

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Svazek periodika

9

Číslo periodika v rámci svazku

239

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

23

Strana od-do

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Kód UT WoS článku

000271183900001

EID výsledku v databázi Scopus

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