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Wyszukujesz frazę "Yucedag, C." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Differences among Juniperus excelsa populations as revealed at morphological traits
Autorzy:
Yucedag, C.
Gailing, O.
Powiązania:
https://bibliotekanauki.pl/articles/41657.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
The comparison of phenotypic trait differentiation and genetic differentiation at selectively neutral genetic markers can indicate divergent selection on traits. Phenotypic trait differentiation (PST) andtwo multivariate analysis methods were used to determine the level of differentiation and relationships among seven Juniperus excelsa populations basedon 13 morphological characters of their cones, seeds, juvenile seedlings and 1+0 year old seedlings. Significant differences among populations were found for all morphological characters (P<0.001) apart from cotyledon length using ANOVA. According to Penrose and Squared Euclidean distances, the southeastern populations Bucak-Kestel and Gölhisar-Gölhisar (0.970; 12.374) were most similar. Aksu-Sorgun andE ðirdir-Barla populations, separated by a mountain range, were the most different populations (4.647; 47.157). Evaluatedas a whole, both multivariate analysis methods gave similar results. Phenotypic trait differentiation (PST) for 1+0 year oldseed lings that were grown in a common environment was similar in magnitude for the majority of traits as genetic differentiation at nuclear microsatellite markers (FST) suggesting the absence of divergent selection on these traits.
Źródło:
Dendrobiology; 2013, 70
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stomatal density in Quercus petraea and Q. robur natural populations in Northern Turkey
Autorzy:
Yücedağ, C.
Sanders, J.
Musah, M.
Gailing, O.
Powiązania:
https://bibliotekanauki.pl/articles/2077759.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
stomatal density
genetic differentiation
phenotypic differentiation
Opis:
This study examined variation of stomatal density in two populations of Quercus petraea (Matt.) Liebl. and two populations of Q. robur L. from northwestern Turkey. Stomatal density was determined in fully expanded and dried leaf samples that were collected from trees under natural conditions. Stomatal densities of Q. petraea and Q. robur varied from 186 to 459 per mm2 (mean value: 333 stomata per mm2) and from 397 to 826 per mm2 (mean value: 517 stomata per mm2), respectively. Significant differences in stomatal density were found between these two oak species in Turkey as well as between populations within species. Strong and significant negative correlations were observed between stomatal density and leaf length within each species and across the species. While in Central Europe Q. petraea occurs in drier environments than Q. robur, in the present study Q. robur populations grow in more arid environments and have smaller leaves and a higher stomatal density than Q. petraea. Stomatal density had negative correla- tions with each of the other leaf characters apart from sinus width. In addition, the interspecific PST value (0.48) for stomatal density was relatively high compared to the mean genetic differentiation calculated at eight microsatellite loci (FST = 0.030), suggesting different local adaptations of populations. Further studies that include additional populations will be necessary to associate genetic variation at candidate genes with phenotypic and environmental variation.
Źródło:
Dendrobiology; 2019, 81
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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