Genetic differentiation in plants of the genus Cypripedium from Russia inferred from allozyme data

Filippov, E. G.; Andronova, E. V.

doi:10.1134/s1022795411050061

Cited by 7 publications

(4 citation statements)

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“…However, the fact that C. calceolus and C. × ventricosum may share the same parent taxa based on our results (i.e., C. shanxiense and C. macranthos ) and that introgressive hybridization has been previously reported between C. calceolus and C. × ventricosum (Knyasev et al ., 2000) could elucidate the relationship between these species. Furthermore, it has been shown that the genetic structure of C. shanxiense was similar to C. calceolus from the eastern part of the range where they are sympatric, with the authors arguing that it may have been a result of introgressive hybridization, making the classification of these taxa even more challenging (Filippov and Andronova, 2011). At the same time, a hybrid has also been described between these two species (i.e., C. × microsaccos Kraenzl; Frosch and Cribb, 2012; SC Chen et al ., 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, it has been shown that the genetic structure of C. shanxiense was similar to C. calceolus from the eastern part of the range where they are sympatric, with the authors arguing that it may have been a result of introgressive hybridization, making the classification of these taxa even more challenging (Filippov and Andronova, 2011). At the same time, a hybrid has also been described between these two species (i.e., C. × microsaccos Kraenzl; Frosch and Cribb, 2012;SC Chen et al, 2013).…”

Section: Rapid Radiation Whole Genome Duplication and Hybridization P...mentioning

confidence: 99%

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Phylogenomic Analysis of Target Enrichment and Transcriptome Data Uncovers Rapid Radiation and Extensive Hybridization in Slipper Orchid GenusCypripediumL

Lagou,

Kadereit,

Morales-Briones

2024

Preprint

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Cypripediumis the most widespread and morphologically diverse genus of slipper orchids. Despite several published phylogenies based on Sanger sequencing data, the topology and monophyly of its infrageneric taxa remained uncertain. Here, we aimed to reconstruct a robust section-level phylogeny ofCypripediumand explore its evolutionary history using target capture data for the first time. We used the orchid-specific bait set "Orchidaceae963" to reconstruct the phylogeny ofCypripediumbased on 614 nuclear loci, covering 11 out of 13 sections. Subsequently, we investigated tree discordance, estimated divergence times and ancestral ranges, searched for anomaly zones, polytomies, and diversification rate shifts, and identified gene duplication and hybridization events. All sections were recovered as monophyletic, contrary to the subsections within sect.Cypripedium. Although the two subclades within this section did not correspond to its two subsections, they matched the geographic distribution of their species. Additionally, we discovered high levels of discordance in the short backbone branches of the genus and within sect.Cypripedium, which can be attributed to gene duplication and hybridization events, a potential whole genome duplication, and incomplete lineage sorting caused by rapid radiation. Our biogeographic analysis suggested a Neotropical origin of the genus during the Early Miocene (~20 Ma). The rapid radiations at the backbone likely occurred in Southeast Asia around the Middle Miocene Climatic Transition (~15-13 Ma), followed by several independent dispersals back to the New World. Moreover, the Pliocene-Quaternary glacial cycles may have contributed to further speciation and reticulate evolution, giving rise to a hybrid swarm within sect.Cypripedium. Our study provided novel insights into the evolutionary history ofCypripediumbased on high-throughput molecular data, shedding light on the dynamics of its distribution and diversity patterns from its origin to the present.

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Section: Discussionmentioning

confidence: 99%

Section: Rapid Radiation Whole Genome Duplication and Hybridization P...mentioning

confidence: 99%

Phylogenomic Analysis of Target Enrichment and Transcriptome Data Uncovers Rapid Radiation and Extensive Hybridization in Slipper Orchid GenusCypripediumL

Lagou,

Kadereit,

Morales-Briones

2024

Preprint

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“…calceolus individuals from the Russian Far East (gene pool C) have only an H2 haplotype (based on plastid DNA variation, i.e., haplotype A according to Taniguchi et al [ 21 ]), which is also characteristic of C. shanxiense [ 20 ]. Based on analysis of enzyme systems, Filippov et al [ 38 ] indicated hybridization between C . calceolus and C .…”

Section: Discussionmentioning

confidence: 99%

Genetic History of the Remnant Population of the Rare Orchid Cypripedium calceolus Based on Plastid and Nuclear rDNA

Górniak

Jakubska-Busse

Ziętara

2021

Genes

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The lady’s slipper orchid (Cypripedium calceolus), which inhabits shady deciduous and mixed forests and meadows, is now threatened with extinction in many European countries, and its natural populations have been dramatically declining in recent years. Knowledge of its evolutionary history, genetic variability, and processes in small populations are therefore crucial for the species’ protection. Nowadays, in south-west Poland, it is only distributed in seven small remnant and isolated populations, which we examined. One nuclear (ITS rDNA) and two plastid (accD-psa1, trnL-F) markers were analyzed and compared globally in this study. Based on the nuclear marker, the most common ancestor of C. calceolus and Cypripedium shanxiense existed about 2 million years ago (95% HPD: 5.33–0.44) in Asia. The division of the C. calceolus population into the European and Asian lineages indicated by C/T polymorphism started about 0.5 million years ago (95% HPD: 1.8–0.01). The observed variation of plastid DNA, which arose during the Pleistocene glacial–interglacial cycles, is still diffuse in Poland. Its distribution is explained by the result of fragmentation or habitat loss due to human impact on the environment.

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“…These apparently contradictory results suggest that the available studies of ENEs of extremely small size populations are not enough to understand which processes are involved and how they influence the genetic structure levels of these species. Consequently, we are not ready to propose a conservation strategy for the ENEs based on genetic structure levels, as is usual in the case of relatively widespread species (e.g., [18][19][20]). Moreover, the relative importance of factors and processes that could be involved in shaping the genetic structure in ENEs are not understood.…”

Section: Introductionmentioning

confidence: 99%

Genetics and Conservation of Plant Species of Extremely Narrow Geographic Range

2016

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Abstract:The endemic plant species with extremely narrow geographical range (<100 km 2 ) often have few populations of small size and tend to be more vulnerable to extinction by genetic drift and inbreeding effects. For these species, we tested if intraspecific genetic diversity can be applied to identify conservation priorities. The biological model was Mammillaria albiflora-a Mexican cactus that numbers~1000 individuals distributed in four nearby patches covering 4.3 km 2 . A total of 96 individuals were genotyped with 10 microsatellite loci to describe the genetic substructure and diversity. There is significant population substructure: the genetic diversity is distributed in three genetic neighbors and varies among the patches, the genotypes are not randomly distributed and three genetic barriers restrict the gene flow. The current population size is 15 times smaller than in the past. The restricted gene flow and genetic drift are the processes that have shaped population substructure. To conserve the genetic diversity of this cactus we recommend that two patches, which are not private property, be legally protected; to include M. albiflora in the Red List Species of Mexico in the category of extinction risk; and a legal propagation program may help to diminish the illegal harvesting.

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Genetic differentiation in plants of the genus Cypripedium from Russia inferred from allozyme data

Cited by 7 publications

References 4 publications

Phylogenomic Analysis of Target Enrichment and Transcriptome Data Uncovers Rapid Radiation and Extensive Hybridization in Slipper Orchid GenusCypripediumL

Phylogenomic Analysis of Target Enrichment and Transcriptome Data Uncovers Rapid Radiation and Extensive Hybridization in Slipper Orchid GenusCypripediumL

Genetic History of the Remnant Population of the Rare Orchid Cypripedium calceolus Based on Plastid and Nuclear rDNA

Genetics and Conservation of Plant Species of Extremely Narrow Geographic Range

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