How genome size variation is linked with evolution within Chenopodium sensu lato

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F16%3A00464110" target="_blank" >RIV/67985939:_____/16:00464110 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/16:71033

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ppees.2016.09.004" target="_blank" >http://dx.doi.org/10.1016/j.ppees.2016.09.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ppees.2016.09.004" target="_blank" >10.1016/j.ppees.2016.09.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

How genome size variation is linked with evolution within Chenopodium sensu lato

Popis výsledku v původním jazyce

Results can be summarized as follows: (1) We reportthe first chromosome counts for five Chenopodium species. (2) Flow cytometry determined that 2C and 1CxDNA values differed up to 7.83- and 3.60 fold, respectively, with the lowest 1Cx value for C. schraderianum(0.412 pg) [excluding tetraploid (2n = 4 x = 32) C. ambrosioides with x = 8 and 1Cx DNA content 0.279 pg]and the highest for C. californicum (1.484 pg). (3) Our extended phylogeny confirms the existence ofpreviously recognized basic evolutionary lineages while underscoring the need to further increase taxonsampling for a full understanding of relationships in Chenopodioideae. (4) Our analysis of genome sizeevolution estimated the ancestral genome size of Chenopodium s. lat. at 0.541 pg/1Cx. In addition, the datarevealed a correlation between 1Cx DNA content and ploidy level. Moreover, the PGLS approach indicatedthat the genome size variation (i) followed the random walk model, indicating no unambiguous trendtowards genome size increase or decrease; (ii) was correlated with phylogeny (0.987); (iii) evolvedgradually (2.256); and (vi) occurred rather late after speciation, which can be attributed to species-specific adaptation (3.000). (5) There are indications that several ecological traits were significantlyassociated with 2C DNA content. While mean plant height, maximum plant height, fruit diameter and lifeform were positively correlated with genome size, the species’ continent of origin showed no correlation.

Název v anglickém jazyce

How genome size variation is linked with evolution within Chenopodium sensu lato

Popis výsledku anglicky

Results can be summarized as follows: (1) We reportthe first chromosome counts for five Chenopodium species. (2) Flow cytometry determined that 2C and 1CxDNA values differed up to 7.83- and 3.60 fold, respectively, with the lowest 1Cx value for C. schraderianum(0.412 pg) [excluding tetraploid (2n = 4 x = 32) C. ambrosioides with x = 8 and 1Cx DNA content 0.279 pg]and the highest for C. californicum (1.484 pg). (3) Our extended phylogeny confirms the existence ofpreviously recognized basic evolutionary lineages while underscoring the need to further increase taxonsampling for a full understanding of relationships in Chenopodioideae. (4) Our analysis of genome sizeevolution estimated the ancestral genome size of Chenopodium s. lat. at 0.541 pg/1Cx. In addition, the datarevealed a correlation between 1Cx DNA content and ploidy level. Moreover, the PGLS approach indicatedthat the genome size variation (i) followed the random walk model, indicating no unambiguous trendtowards genome size increase or decrease; (ii) was correlated with phylogeny (0.987); (iii) evolvedgradually (2.256); and (vi) occurred rather late after speciation, which can be attributed to species-specific adaptation (3.000). (5) There are indications that several ecological traits were significantlyassociated with 2C DNA content. While mean plant height, maximum plant height, fruit diameter and lifeform were positively correlated with genome size, the species’ continent of origin showed no correlation.

Druh

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

CEP obor

EF - Botanika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-02290S" target="_blank" >GA13-02290S: Význam hybridizace a polyploidizace v evoluci Chenopodium album agg.: od biosystematiky ke genovým expresím</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Perspectives in Plant Ecology, Evolution and Systematics

ISSN

1433-8319

e-ISSN

—

Svazek periodika

23

Číslo periodika v rámci svazku

DEC 2016

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

18-32

Kód UT WoS článku

000392562200003

EID výsledku v databázi Scopus

2-s2.0-84988936026