Development of 15 nuclear <scp>EST</scp> microsatellite markers for the paleoendemic conifer <i>Pherosphaera hookeriana</i> (Podocarpaceae)

Worth, James R. P.; Marthick, James R.; Rossetto, Maurizio; Cohen, Joel; Bourke, Greg; Jordan, Gregory J.

doi:10.1002/aps3.1160

Cited by 4 publications

References 12 publications

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Development of 15 nuclear EST microsatellite markers for the paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae)

et al. 2018

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Premise of the StudyNuclear microsatellite markers were developed for population genetic analysis of the threatened paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae).Methods and ResultsFifteen variable loci were identified showing one to 13 alleles per population, with seven loci displaying at least four alleles in all populations, and the average number of alleles per locus ranging from 4.80 to 5.93 per population. Levels of observed heterozygosity per locus varied from 0.00 to 0.91, while average heterozygosity across all loci varied from 0.54 to 0.63 between populations. All loci also amplified in the endangered congener P. fitzgeraldii, but only five of the loci had more than one allele.ConclusionsThese 15 loci are the first microsatellite markers developed in the genus Pherosphaera. These loci will be useful for investigating the species' extant genetic diversity and structure, the impact of past environmental change, and the significance of asexual reproduction.

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Development of 15 nuclear EST microsatellite markers for the paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae)

et al. 2018

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On the edge: Conservation genomics of the critically endangered dwarf mountain pine Pherosphaera fitzgeraldii

McMaster,

Yap,

Chen

et al. 2024

Basic and Applied Ecology

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Morpho-anatomical affinities and evolutionary relationships of three paleoendemic podocarp genera based on seed cone traits

Khan

Hill

2021

Annals of Botany

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Background and Aims The three relict genera Pherosphaera, Microcachrys and Saxegothaea in Podocarpaceae produce quite distinct seed cone types in comparison to other genera and does not form a clade along with Acmopyle. The detailed seed cone morpho-anatomy of these three relict genera and affinities with other podocarps are poorly known. This study aims to understand the seed cone morpho-anatomy and affinities among these three disjunct relict genera and with other podocarps. Methods We comparatively analysed the seed cone morpho-anatomical traits of the three podocarps genera and used ancestral state reconstruction to understand the evolution of these traits. Key Results We described the seed cone morpho-anatomical structures of the three relict genera in detail. The three genera produce aggregated multiovulate cones. Both Microcachrys and Saxegothaea has an asymmetrical free cup-like epimatium. Both species of Pherosphaera lack epimatium. The ancestral state reconstruction implies that the presence of epimatium is an ancestral trait in podocarps and independently lost in Pherosphaera and Phyllocladus. The seed cones are fleshy in Microcachrys and non-fleshy in Saxegothaea and Pherosphaera. The seed cone macrofossils of both extinct and living podocarps also show the presence of epimatium and fleshiness in podocarps. Conclusions Altogether, the morpho-anatomy suggests Pherosphaera, Microcachrys and Saxegothaea present affinities with each other and other podocarps but the reconstruction of ancestral seed cone in Podcarpaceae is quite complex due to multiple convergent evolutions of several structures. These structures (e.g. epimatium, aril, receptaculum) are of low taxonomic value but of great evolutionary and ecologically significance and are responsive adaptations to ever-changing environmental conditions.

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Development of 15 nuclear EST microsatellite markers for the paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae)

Cited by 4 publications

References 12 publications

Development of 15 nuclear EST microsatellite markers for the paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae)

Development of 15 nuclear EST microsatellite markers for the paleoendemic conifer Pherosphaera hookeriana (Podocarpaceae)

On the edge: Conservation genomics of the critically endangered dwarf mountain pine Pherosphaera fitzgeraldii

Morpho-anatomical affinities and evolutionary relationships of three paleoendemic podocarp genera based on seed cone traits

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