Geometric Morphometric Analysis of Shape Variation in the Cone-Scales of Pinus pumila (Pall.) Regel (Pinaceae) in Kamchatka

Vetrova, Valentina P.

doi:10.17581/bp.2013.02102

Cited by 7 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…by analyzing the scale shape variation by means of landmarks and semi‐landmarks (Vetrova, 2013; Vetrova et al, 2020). These studies of ovulate cone scales show that geometric morphometry is a “reliable marker to estimate phenotypic diversity in P. pumila ” (Vetrova, 2013, p. 24), because this character is mainly influenced by latitudinal factors. Our results show that the method is efficient as a tool to characterize the intra‐ and interspecific scale variability among those species.…”

Section: Discussionmentioning

confidence: 99%

“…Twenty semi-landmarks were also placed between those two fixed landmarks, following the outline curve of the half of the scale. Because the scale is a symmetrical structure, only one side is analyzed (following Vetrova, 2013) to avoid data redundancy (Webster and Sheets, 2010) and to reduce the influence of symmetry reduction by fossilization. They still retain their general shape (curvature, angle, size).…”

Section: Geometric Morphometricsmentioning

confidence: 99%

“…Fossil cones are rarely encountered in large numbers (Smith et al, 2017), which explains why morphometric methods have rarely been applied on fossil cone material before. However, even in extant assemblages, morphometric methods have rarely been tested on fresh material and have never been compared (Marcysiak, 2004;Vetrova, 2013;Vetrova et al, 2020). Geometric morphometric analyses were used to characterize the phenotypic diversity of Pinaceae species [Pinus pumila (Pall.)…”

mentioning

confidence: 99%

“…Regel and Larix Mill.] by analyzing the scale shape variation by means of landmarks and semi-landmarks (Vetrova, 2013;Vetrova et al, 2020). These studies of ovulate cone scales show that geometric morphometry is a "reliable marker to estimate phenotypic diversity in P. pumila" (Vetrova, 2013, p. 24), because this character is mainly influenced by latitudinal factors.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Morphological disparity of extant and extinct pinaceous ovulate cones: How many cones are enough?

Brito

Fischer

Prestianni

2022

American J of Botany

View full text Add to dashboard Cite

Premise: The expansion of Pinaceae during the Cretaceous is exemplified by the numerous ovulate cone taxa found in western Europe and North America. The Belgian Wealden facies deposits have delivered hundreds of exceptionally wellpreserved yet isolated pinaceous ovulate cones; these cones were placed by convention within form-genera. Ten species have been described in Belgium, representing about 20% of the known fossil record of this period. However, the validity of these taxa is questionable because their intra-and interspecific variabilities have never been thoroughly studied. Moreover, quantifying the expansion of Pinaceae in terms of morphospace occupation is desirable to reveal the dynamics of this critical radiation. Methods: We used linear and geometric morphometry to quantify the shape of the extensive sample of Cretaceous cones of Belgium. These methods were also applied to extant pinaceous species to compare the morphological disparity of Cretaceous assemblages against those of today in selected ecosystems. We used ordination methods (PCA) to visualize morphospace occupation and test for species delineation. Results: The morphological disparity was not higher in fossil species than in extant species we sampled. Both morphological approaches confirmed that the species Pityostrobus andraei presents high morphological variability. Our resampling tests indicate that ovulate cone morphological variability can be satisfactorily quantified with as few as 15 specimens. Conclusions: The methodology used here is relevant for quantifying both the variability and the diversity of many fossil assemblages, paving the way for a more robust evaluation of Cretaceous pinaceous diversity.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Geometric Morphometricsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Morphological disparity of extant and extinct pinaceous ovulate cones: How many cones are enough?

Brito

Fischer

Prestianni

2022

American J of Botany

View full text Add to dashboard Cite

show abstract

“…Эф-фективность этого подхода для анализа изменчивости и дифференциации популяций была показана на примере кедрового стланика (Pinus pumila (Pall.) Regel) (Vetrova, 2013;Ветрова, Синельникова, 2014).…”

unclassified

Relationships between the allozyme and phenotypic diversities of Picea ajanensis populations

Vetrova¹,

Экарт²,

Кравченко³

et al. 2015

Vestn. VOGiS

View full text Add to dashboard Cite

The structures of Picea a�anensis �o�ulations were com�ared based on allozyme analysis of vegetative buds and mor�hometric analysis of generative organs. Six ceno�o�ulations of P. a�anensis were investigated in areas with various levels of volcanic im�act in the Kamchat�a Peninsula. The genetic structures of s�ruce �o�ulations and �henoty�es were determined by analysis of ten enzyme systems (PGM�� GOT�� HK�� LAP�� MDH�� SKDH�� IDH�� GDH�� PGI and SOD�. Phenoty�ic variability of s�ruce �o�ulations was estimated based on the com�osition of mor�hoty�es that were identified by using geometric mor�hometrics of cone-scale sha�es. Pairwise com�arison of sam�les of cones from 1�0 trees from six �o�ulations revealed 12 mor�hoty�es differing in the sha�e of cone scales. com�arative assessment of variability and similarity of �o�ulations was carried out based on the frequency of occurrence of �henoty�es and frequency of alleles of �olymor�hic loci. correlations of the genetic and �henoty�ic distance matrices between different �henoty�es were revealed. This observation was consistent with the genetic determination of the sha�e of cone scales in s�ruce. Genetic differences between the mor�hoty�es with regard to nine �olymor�hic loci (Got-2�� Skdh-1�� Idh-2�� Pgm-2�� Mdh-1�� Mdh-3�� Pgm-1�� Pgi-2�� and Hk� were not significant. Statistically significant differences between the mor�hoty�es were revealed for two loci�� Pgm-2 and Mdh-1. Differences in the genetic diversity of s�ruce �o�ulations generally corres�onded to differences in their �henoty�ic diversity. The high levels of genetic and �henoty�ic diversity characterized a stable �o�ulation structure of s�ruce in the area of wea� volcanic influence. changes in the genetic structure and low levels of the �henoty�ic diversity of s�ruce were observed under catastro�hic volcanic im�act.Key words�� allozyme �olymor�hism; �henoty�ic diversity; cone mor�hology; Picea a�anensis. �роведено сравнение структуры популяций ели аянской (Picea a�anensis� по резул��татам аллозимного анализа тканей вегетативных по�ек и морфометри�еского анализа генеративных органов. Исследовали шест�� ценопопуляций P. a�anensis�� произраста�щих на полуострове ��ам�атка в районах с разным уровнем вулкани�еского воздействия. Генети�еская измен�ивост�� ели определена на основании анализа 10 ферментных систем (PGM�� GOT�� HK�� LAP�� MDH�� SKDH�� IDH�� GDH�� PGI�� SOD�. Фенотипи�еское разноо�разие оценивали по составу морфотипов�� выделенных методами геометри�еской морфометрии по форме семенных �ешуй шишек. �ри попарном сравнении вы�орок шишек со 1�0 дерев��ев из шести популяций �ыло выделено 12 морфотипов. �роведена сравнител��ная оценка разноо�разия и сходства популяций по �астоте встре�аемости морфотипов и �астоте аллелей полиморфных локусов. Выявлена корреляция матриц генети�еских и фенотипи�еских расстояний между группами дерев��ев разных морфотипов�� то согласуется с генети�еской детерминацией формы семенных �ешуй шишек у ели. �о сово-купности 9 полиморфных локусов (Got-2�� Skdh-1�� Idh-2�� Pgm-2�� Mdh-1...

show abstract

Pityostrobus andraei (Pinaceae) from the Barremian (Lower Cretaceous) of Belgium: A Morphometric Revision

Brito

Prestianni

2021

International Journal of Plant Sciences

View full text Add to dashboard Cite

Geometric Morphometric Analysis of Shape Variation in the Cone-Scales of Pinus pumila (Pall.) Regel (Pinaceae) in Kamchatka

Cited by 7 publications

References 4 publications

Morphological disparity of extant and extinct pinaceous ovulate cones: How many cones are enough?

Morphological disparity of extant and extinct pinaceous ovulate cones: How many cones are enough?

Relationships between the allozyme and phenotypic diversities of Picea ajanensis populations

Pityostrobus andraei (Pinaceae) from the Barremian (Lower Cretaceous) of Belgium: A Morphometric Revision

Contact Info

Product

Resources

About