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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40105 - Horticulture, viticulture

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Horticulturae

ISSN

2311-7524

e-ISSN

2311-7524

Volume of the periodical

10

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

1241

UT code for WoS article

001383870200001

EID of the result in the Scopus database

2-s2.0-85213339899