Phylogeny, morphology, and biogeography of <i> Haplophyllum</i> (Rutaceae), a species‐rich genus of the Irano‐Turanian floristic region

Salvo, Gabriele; Manafzadeh, Sara; Ghahremaninejad, Farrokh; Tojibaev, Komiljon; Zeltner, Louis; Conti, Elena

doi:10.1002/tax.602018

Cited by 27 publications

(27 citation statements)

References 59 publications

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“…It is also different from the partial matK sequence used in the unpublished DNA barcoding projects. In addition, although other studies [24], [36] used the entire matK sequence, the number of accessions tested was small.…”

Section: Resultsmentioning

confidence: 99%

Phylogenetic Relationships of Citrus and Its Relatives Based on matK Gene Sequences

et al. 2013

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The genus Citrus includes mandarin, orange, lemon, grapefruit and lime, which have high economic and nutritional value. The family Rutaceae can be divided into 7 subfamilies, including Aurantioideae. The genus Citrus belongs to the subfamily Aurantioideae. In this study, we sequenced the chloroplast matK genes of 135 accessions from 22 genera of Aurantioideae and analyzed them phylogenetically. Our study includes many accessions that have not been examined in other studies. The subfamily Aurantioideae has been classified into 2 tribes, Clauseneae and Citreae, and our current molecular analysis clearly discriminate Citreae from Clauseneae by using only 1 chloroplast DNA sequence. Our study confirms previous observations on the molecular phylogeny of Aurantioideae in many aspects. However, we have provided novel information on these genetic relationships. For example, inconsistent with the previous observation, and consistent with our preliminary study using the chloroplast rbcL genes, our analysis showed that Feroniella oblata is not nested in Citrus species and is closely related with Feronia limonia. Furthermore, we have shown that Murraya paniculata is similar to Merrillia caloxylon and is dissimilar to Murraya koenigii. We found that “true citrus fruit trees” could be divided into 2 subclusters. One subcluster included Citrus, Fortunella, and Poncirus, while the other cluster included Microcitrus and Eremocitrus. Compared to previous studies, our current study is the most extensive phylogenetic study of Citrus species since it includes 93 accessions. The results indicate that Citrus species can be classified into 3 clusters: a citron cluster, a pummelo cluster, and a mandarin cluster. Although most mandarin accessions belonged to the mandarin cluster, we found some exceptions. We also obtained the information on the genetic background of various species of acid citrus grown in Japan. Because the genus Citrus contains many important accessions, we have comprehensively discussed the classification of this genus.

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Section: Resultsmentioning

confidence: 99%

Phylogenetic Relationships of Citrus and Its Relatives Based on matK Gene Sequences

et al. 2013

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“…, 2010) and are probably cases of long‐distance dispersal. Cneoridium might have diverged from its sister group ( Haplophyllum or Haplophyllum + Aurantioideae) in the Eocene (Salvo et al. , 2010, 2011) and Thamnosma possibly originated in the Miocene (Thiv et al.…”

Section: Discussionmentioning

confidence: 99%

Age and historical biogeography of the pantropically distributed Spathelioideae (Rutaceae, Sapindales)

Appelhans

Kessler

Smets

et al. 2012

Journal of Biogeography

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Aim The family Rutaceae (rue family) is the largest within the eudicot order Sapindales and is distributed mainly in the tropical and subtropical regions of both the New World and the Old World, with a few genera in temperate zones. The main objective of this study is to present molecular dating and biogeographical analyses of the subfamily Spathelioideae, the earliest branching clade (which includes eight extant genera), to interpret the temporal and spatial origins of this group, ascertaining possible vicariant patterns and dispersal routes and inferring diversification rates through time. Location Pantropics. Methods A dataset comprising a complete taxon sampling at generic level (83.3% at species level) of Spathelioideae was used for a Bayesian molecular dating analysis (beast). Four fossil calibration points and an age constraint for Sapindales were applied. An ancestral area reconstruction analysis utilizing the dispersal–extinction–cladogenesis model and diversification rate analyses was conducted. Results Dating analyses indicate that Rutaceae and Spathelioideae are probably of Late Cretaceous origin, after which Spathelioideae split into a Neotropical and a Palaeotropical lineage. The Palaeotropical taxa have their origin inferred in Africa, with postulated dispersal events to the Mediterranean, the Canary Islands, Madagascar and Southeast Asia. The lineages within Spathelioideae evolved at a relatively constant diversification rate. However, abrupt changes in diversification rates are inferred from the beginning of the Miocene and during the Pliocene/Pleistocene. Main conclusions The geographical origin of Spathelioideae probably lies in Africa. The existence of a Neotropical lineage may be the result of a dispersal event at a time in the Late Cretaceous when South America and Africa were still quite close to each other (assuming that our age estimates are close to the actual ages), or by Gondwanan vicariance (assuming that our age estimates provide minimal ages only). Separation of land masses caused by sea level changes during the Pliocene and Pleistocene may have been triggers for speciation in the Caribbean genus Spathelia.

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“…Dictamnus has a wide distribution from Western Europe to northern China (Kubitzki et al, ). Haplophyllum is by far the most speciose genus of the Ruteae and consists of about 68 species with a wide distributional range from Morocco and Spain in the West to northeastern China (Heilongjiang) in the East (Salvo et al, ). Ruta consists of nine species mostly found in the western Mediterranean with three species on the Canary Islands (Salvo et al, ).…”

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Phylogenetic placement of Psilopeganum, a rare monotypic genus of Rutaceae (the citrus family) endemic to China

Appelhans

Krohm

Manafzadeh

et al. 2016

J of Sytematics Evolution

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Psilopeganum (Rutaceae) is a rare monotypic genus endemic to the vicinity of the Yangtze River valley in Chongqing, Hubei, Sichuan and Guizhou provinces in China. It differs from most Rutaceae taxa by its herbaceous habit and has been treated as a member of the tribe Ruteae. Our study is the first attempt to place Psilopeganum in a phylogenetic context and our results show that the genus belongs to a clade with Boenninghausenia, Ruta and Thamnosma, which are part of Ruteae. Within this group, the position of Psilopeganum remains unclear because the Boenninghausenia‐Thamnosma clade, Psilopeganum and Ruta form a trichotomy in most analyses. The ITS dataset placed Psilopeganum as sister to the Mediterranean and Canarian genus Ruta, which is corroborated by morphological similarities. Our studies support that Ruteae is paraphyletic with respect to Aurantioideae and that Dictamnus does not belong to Ruteae. The Indian, Sri Lankan, and Malagasy genus Chloroxylon is sister to the Boenninghausenia‐Psilopeganum‐Ruta‐Thamnosma clade, despite its traditional placement in the subfamily Flindersioideae. The placement of Chloroxylon is consistent with an origin of the group of Chloroxylon, Boenninghausenia, Psilopeganum, Ruta and Thamnosma in southern Asia. The rapid uplifts of the Himalayas could account for one or two vicariance events splitting the lineages of the Boenninghausenia‐Psilopeganum‐Ruta‐Thamnosma clade, and may explain the short branch length and low support for the relationships among Psilopeganum, Ruta, and the Boenninghausenia‐Thamnosma clade.

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Phylogeny, morphology, and biogeography of Haplophyllum (Rutaceae), a species‐rich genus of the Irano‐Turanian floristic region

Cited by 27 publications

References 59 publications

Phylogenetic Relationships of Citrus and Its Relatives Based on matK Gene Sequences

Phylogenetic Relationships of Citrus and Its Relatives Based on matK Gene Sequences

Age and historical biogeography of the pantropically distributed Spathelioideae (Rutaceae, Sapindales)

Phylogenetic placement of Psilopeganum, a rare monotypic genus of Rutaceae (the citrus family) endemic to China

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