Rhinanthus plants found in calcareous fens on Gotland (Sweden): Are they related to Rhinanthus osiliensis from Saaremaa (Estonia)?

Talve, Tiina; Mürk, Margarita; Lindell, Torbjörn; Oja, Tõnu

doi:10.1016/j.bse.2014.01.006

Cited by 6 publications

(1 citation statement)

References 31 publications

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“…Microsatellite markers are proven appropriate for population structure and differentiation studies (Pálsson 2000; Song et al 2006; Tyagi et al 2016; Volis et al 2016) and for investigating the relationship among closely related taxa (Korpelainen et al 2010; Talve et al 2013, 2014). …”

Section: Discussionmentioning

confidence: 99%

Two closely related species differ in their regional genetic differentiation despite admixing

2018

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Genetic differences between regions are usually studied for individual species. However, many species can reproduce with each other. We studied whether gene flow between two closely related sedge species influences regional differences. Our molecular genetic data support considerable gene flow between the species. Still, we detected clear genetic differences between species and regions, and more pronounced regional differences for the less common one. Thus, gene flow between the species appeared too weak to neutralize differences between the regional genetic structure of our study species. We encourage further regional differentiation studies in groups of cross-compatible species.

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Section: Discussionmentioning

confidence: 99%

Two closely related species differ in their regional genetic differentiation despite admixing

2018

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From bog to fen: palaeoecological reconstruction of the development of a calcareous spring fen on Saaremaa, Estonia

Blaus

Reitalu

Amon

et al. 2019

Veget Hist Archaeobot

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The evolution of spring fen ecotypes in Rhinanthus: genetic evidence for parallel origins in Scandinavia after the last ice age

et al. 2020

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Locally adapted ecotypes can constitute an important part of the biodiversity, especially in young floras with few endemic species. However, the origins, distinctness and conservation value of many ecotypes remain uncertain because genetic data are lacking or no common-garden study has been carried out. In the present study, we evaluated the distinctness and genetic structure of a phenotypically deviating morph of Rhinanthus angustifolius, growing in calcareous spring fens on the Baltic island of Gotland. Using data from a common-garden experiment and analyses of nuclear microsatellite variation, we compared fen populations on Gotland with conspecific populations from habitats more typical of the study species. We also included the fen specialist R. osiliensis from the Baltic island of Saaremaa in the molecular analyses to make further inferences about the origin of the Gotlandic fen morph. Our data indicate that the Gotlandic fen populations constitute a phenotypically and genetically distinct ecotype that most likely has evolved at least two times on Gotland after the last ice age. In congruence with previous studies, we also infer that fen ecotypes have evolved independently on Gotland and Saaremaa. We propose a varietal status for the Gotlandic fen ecotype and give recommendations for the conservation of this taxon.

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Rhinanthus plants found in calcareous fens on Gotland (Sweden): Are they related to Rhinanthus osiliensis from Saaremaa (Estonia)?

Cited by 6 publications

References 31 publications

Two closely related species differ in their regional genetic differentiation despite admixing

Two closely related species differ in their regional genetic differentiation despite admixing

From bog to fen: palaeoecological reconstruction of the development of a calcareous spring fen on Saaremaa, Estonia

The evolution of spring fen ecotypes in Rhinanthus: genetic evidence for parallel origins in Scandinavia after the last ice age

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