The mentor effect increases the rate of selfing in couch grasses
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F21%3A00552794" target="_blank" >RIV/67985939:_____/21:00552794 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/27184145:_____/21:N0000006 RIV/00216208:11310/21:10453230
Výsledek na webu
<a href="http://www.preslia.cz/doi/preslia.2021.377.html" target="_blank" >http://www.preslia.cz/doi/preslia.2021.377.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.23855/preslia.2021.377" target="_blank" >10.23855/preslia.2021.377</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The mentor effect increases the rate of selfing in couch grasses
Popis výsledku v původním jazyce
Some self-incompatible species are thought to be capable of selfing via facilitation by foreign pollen (induced selfing or the mentor effect), which might be a phenomenon of underestimated importance. In addition, higher percentages of selfing are linked to polyploidy. Grasses are a very important plant group, but the degree to which they are capable of selfing (including via the mentor effect) has scarcely been investigated. We selected Elymus hispidus, E. repens and their hybrid (Poaceae tribus Triticeae) as model taxa in order to test their ability to reproduce by selfing, to assess the significance of induced selfing, and to examine the assumed link between selfing and ploidy level (particular cytotype). Because absolute genome size of the model species of Elymus differs significantly, we used flow cytometry as a marker for identifying selfing as opposed to outcrossing based on comparing parental plants with their progeny. The ability for selfing and induced selfing was determined in two complementary crossing experiments supplemented by an open-pollination control treatment. The results confirm that both species and their hybrid are capable of selfing and that the percentage of selfing increased significantly in the presence of foreign pollen. This is especially marked in Elymus hispidus (the realized seed set in autonomous selfing was 6.2% compared to 22.7% in induced selfing). Octoploids selfed more often than hexaploids and heptaploids, and heptaploids produced significantly fewer seeds after selfing than hexaploids and octoploids. The pronounced selfing ability in E. hispidus (observed in both experiments) may be linked to introgression. Despite probably being a very important reproductive feature, the significance of induced selfing (i.e. the mentor effect) is definitely underestimated.
Název v anglickém jazyce
The mentor effect increases the rate of selfing in couch grasses
Popis výsledku anglicky
Some self-incompatible species are thought to be capable of selfing via facilitation by foreign pollen (induced selfing or the mentor effect), which might be a phenomenon of underestimated importance. In addition, higher percentages of selfing are linked to polyploidy. Grasses are a very important plant group, but the degree to which they are capable of selfing (including via the mentor effect) has scarcely been investigated. We selected Elymus hispidus, E. repens and their hybrid (Poaceae tribus Triticeae) as model taxa in order to test their ability to reproduce by selfing, to assess the significance of induced selfing, and to examine the assumed link between selfing and ploidy level (particular cytotype). Because absolute genome size of the model species of Elymus differs significantly, we used flow cytometry as a marker for identifying selfing as opposed to outcrossing based on comparing parental plants with their progeny. The ability for selfing and induced selfing was determined in two complementary crossing experiments supplemented by an open-pollination control treatment. The results confirm that both species and their hybrid are capable of selfing and that the percentage of selfing increased significantly in the presence of foreign pollen. This is especially marked in Elymus hispidus (the realized seed set in autonomous selfing was 6.2% compared to 22.7% in induced selfing). Octoploids selfed more often than hexaploids and heptaploids, and heptaploids produced significantly fewer seeds after selfing than hexaploids and octoploids. The pronounced selfing ability in E. hispidus (observed in both experiments) may be linked to introgression. Despite probably being a very important reproductive feature, the significance of induced selfing (i.e. the mentor effect) is definitely underestimated.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10611 - Plant sciences, botany
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Preslia
ISSN
0032-7786
e-ISSN
0032-7786
Svazek periodika
93
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
21
Strana od-do
377-397
Kód UT WoS článku
000721008700005
EID výsledku v databázi Scopus
2-s2.0-85120658135