Evaluation of the Genome Size and Ploidy Level of Pears (Pyrus spp.) in Relation to Their Morphological Traits

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F24%3A43926040" target="_blank" >RIV/62156489:43510/24:43926040 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/horticulturae10121241" target="_blank" >https://doi.org/10.3390/horticulturae10121241</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/horticulturae10121241" target="_blank" >10.3390/horticulturae10121241</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of the Genome Size and Ploidy Level of Pears (Pyrus spp.) in Relation to Their Morphological Traits

Popis výsledku v původním jazyce

In this study, 53 pear genotypes were evaluated, including 19 Asian varieties, 7 botanical species and 13 new interspecific hybrids. The ploidy level and nuclear DNA content were determined by flow cytometry. In addition, the morphological traits and their possible correlations with the genome size were analyzed. One triploid genotype was found. The Asian varieties had a lower average genome size (553.4 Mbp) than the European varieties (564.1 Mbp). The average nuclear DNA content was 1.14 pg/2C for the diploid genotypes and 1.77 pg/2C DNA for the triploids. The Asian varieties had significantly larger leaves than the European ones. Pyrus calleryana had the smallest flowers and P. Caucasica the largest, but the varieties showed no significant differences in flower size. The pollen grain size ranged from 37.7 to 59.0 μm. However, there were no significant correlations between the genotype groups or genome sizes. The Asian cultivars had, on average, smaller stomata (28.4 μm) than the European cultivars (31.6 μm). The largest stomata size was measured for the triploid genotypes (37.9 μm). There was a positive correlation between the genome size and stomatal length and a negative correlation between the genome size and leaf length, leaf width and flower diameter.

Název v anglickém jazyce

Evaluation of the Genome Size and Ploidy Level of Pears (Pyrus spp.) in Relation to Their Morphological Traits

Popis výsledku anglicky

In this study, 53 pear genotypes were evaluated, including 19 Asian varieties, 7 botanical species and 13 new interspecific hybrids. The ploidy level and nuclear DNA content were determined by flow cytometry. In addition, the morphological traits and their possible correlations with the genome size were analyzed. One triploid genotype was found. The Asian varieties had a lower average genome size (553.4 Mbp) than the European varieties (564.1 Mbp). The average nuclear DNA content was 1.14 pg/2C for the diploid genotypes and 1.77 pg/2C DNA for the triploids. The Asian varieties had significantly larger leaves than the European ones. Pyrus calleryana had the smallest flowers and P. Caucasica the largest, but the varieties showed no significant differences in flower size. The pollen grain size ranged from 37.7 to 59.0 μm. However, there were no significant correlations between the genotype groups or genome sizes. The Asian cultivars had, on average, smaller stomata (28.4 μm) than the European cultivars (31.6 μm). The largest stomata size was measured for the triploid genotypes (37.9 μm). There was a positive correlation between the genome size and stomatal length and a negative correlation between the genome size and leaf length, leaf width and flower diameter.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40105 - Horticulture, viticulture

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Horticulturae

ISSN

2311-7524

e-ISSN

2311-7524

Svazek periodika

10

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

1241

Kód UT WoS článku

001383870200001

EID výsledku v databázi Scopus

2-s2.0-85213339899