Exploring floral evolution in Pelargonium (Geraniaceae) : linking shapes and macro-evolution

Kerke, van de; Jacoba, Sara

doi:10.18174/497382

Cited by 1 publication

(2 citation statements)

References 306 publications

(621 reference statements)

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“…nov., Gibby M et al, in preparation). These SW versus NE African Pelargonium (and Ciconium ) disjunctions have been interpreted to reflect previous jump dispersal events, along the high-altitude rift mountain corridors ( van de Kerke 2019 ). Despite the widespread occurrence of the section, many Ciconium species are restricted to specific niches ( van der Walt and Vorster 1988 , Vols I–III; Verboom et al 2009 ) and may have gone through historical population bottlenecks.…”

Section: Introductionmentioning

confidence: 98%

“…Ciconium represents a clade that proliferated ∼5 Ma, according to plastome exon dating analysis by van de Kerke et al (2019) . The Ciconium clade likely evolved in the Cape Floristic Region (CFR) of South Africa ( van de Kerke 2019 ), with several of its species occurring outside the CFR in the Eastern Cape ( P. aridum and P. peltatum ), Eastern Africa ( P. multibracteatum , P. quinquelobatum , P. alchemilloides , P. somalense , and P. insularis ), and the Arabian Peninsula ( P. yemenense sp. nov., Gibby M et al, in preparation).…”

Section: Introductionmentioning

confidence: 99%

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Repeatome-Based Phylogenetics in Pelargonium Section Ciconium (Sweet) Harvey

Breteler

Chen

Snijder

et al. 2021

Genome Biology and Evolution

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The repetitive part of the genome (the ‘repeatome’) contains a wealth of often overlooked information that can be used to resolve phylogenetic relationships and test evolutionary hypotheses for clades of related plant species such as Pelargonium. We have generated genome skimming data for 18 accessions of Pelargonium section Ciconium and one outgroup. We analyzed repeat abundancy and repeat similarity in order to construct repeat profiles and then used these for phylogenetic analyses. We found that phylogenetic trees based on read similarity were largely congruent with previous work based on morphological and chloroplast sequence data. For example, results agreed in identifying a ‘Core Ciconium group which evolved after the split with P. elongatum. We found that this group was characterized by a unique set of repeats, which confirmed currently accepted phylogenetic hypotheses. We also found four species groups within P. sect. Ciconium that reinforce previous plastome-based reconstructions. A second repeat expansion was identified in a subclade which contained species that are considered to have dispersed from Southern Africa into Eastern Africa and the Arabian Peninsula. We speculate that the Core Ciconium repeat set correlates with a possible WGD event leading to this branch.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%