Chloroplast DNA phylogeography of Pedicularis ser. Gloriosae (Orobanchaceae) in Japan

Fujii, Norihiko

doi:10.1007/s10265-007-0083-2

Cited by 13 publications

(9 citation statements)

References 44 publications

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“…They have red flowers and a dense indumentum. The origin of the Japanese endemics (P. gloriosa, P. iwatensis, P. nipponica) from continental ancestors (Fujii, 2007) was supported by this study (Fig. 3).…”

Section: Pedicularis Sceptrum-carolinum Lineagesupporting

confidence: 76%

High mountain origin, phylogenetics, evolution, and niche conservatism of arctic lineages in the hemiparasitic genus Pedicularis (Orobanchaceae)

Tkach

Ree

Kuss³

et al. 2014

Molecular Phylogenetics and Evolution

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The origin of the arctic flora covering the northernmost treeless areas is still poorly understood. Arctic plants may have evolved in situ or immigrated from the adjacent ecosystems. Frequently arctic species have disjunctive distributions between the Arctic and high mountain systems of the temperate zone. This pattern may result from long distance dispersal or from glacial plant migrations and extinctions of intermediate populations. The hemiparasitic genus Pedicularis is represented in the Arctic by c. 28 taxa and ranks among the six most species-rich vascular plant genera of this region. In this study, we test the hypothesis that these lineages evolved from predecessors occurring in northern temperate mountain ranges, many of which are current centers of diversity for the genus. We generated a nuclear ribosomal and chloroplast DNA phylogeny including almost all of the arctic taxa and nearly half of the genus as a whole. The arctic taxa of Pedicularis evolved 12-14 times independently and are mostly nested in lineages that otherwise occur in the high mountains of Eurasia and North America. It appears that only three arctic lineages arose from the present-day center of diversity of the genus, in the Hengduan Mountains and Himalayas. Two lineages are probably of lowland origin. Arctic taxa of Pedicularis show considerable niche conservatism with respect to soil moisture and grow predominantly in moist to wet soils. The studied characteristics of ecology, morphology, and chromosome numbers of arctic Pedicularis show a heterogeneous pattern of evolution. The directions of morphological changes among the arctic lineages show opposing trends. Arctic taxa are chiefly diploid, the few tetraploid chromosome numbers of the genus were recorded only for arctic taxa. Five arctic Pedicularis are annuals or biennials, life forms otherwise rare in the Arctic. Other genera of the Orobanchaceae consist also of an elevated number of short-lived species, thus hemiparasitism may favor this life form in the Arctic. a b s t r a c tThe origin of the arctic flora covering the northernmost treeless areas is still poorly understood. Arctic plants may have evolved in situ or immigrated from the adjacent ecosystems. Frequently arctic species have disjunctive distributions between the Arctic and high mountain systems of the temperate zone. This pattern may result from long distance dispersal or from glacial plant migrations and extinctions of intermediate populations. The hemiparasitic genus Pedicularis is represented in the Arctic by c. 28 taxa and ranks among the six most species-rich vascular plant genera of this region. In this study, we test the hypothesis that these lineages evolved from predecessors occurring in northern temperate mountain ranges, many of which are current centers of diversity for the genus. We generated a nuclear ribosomal and chloroplast DNA phylogeny including almost all of the arctic taxa and nearly half of the genus as a whole. The arctic taxa of Pedicularis evolved 12-14 times independently and are ...

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Section: Pedicularis Sceptrum-carolinum Lineagesupporting

confidence: 76%

High mountain origin, phylogenetics, evolution, and niche conservatism of arctic lineages in the hemiparasitic genus Pedicularis (Orobanchaceae)

Tkach

Ree

Kuss³

et al. 2014

Molecular Phylogenetics and Evolution

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“…Yubari and Sakhalin, and between Mt. Taisetsu and Kamchatka (Fujii 2003). However, the PCA of MIG-seq in this study depicted that L. yesoensis and L. minor from Sakhalin was not unambiguously distinguishable, suggesting that L. yesoensis was derived from the widespread L. minor, not from L. glauca.…”

Section: Contrasting Biogeographic History Of L Takedana and L Yesocontrasting

confidence: 72%

Serpentine mountain uplift in northern Japan triggered the divergence of a narrow endemic from a widespread (sub)arctic Asia-Alaska species complex ofLagotis(Plantaginaceae)

Sugano

Fukuda

Murai

et al. 2019

Preprint

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In the circumboreal region, plants often have extremely-wide species ranges. Lagotis minor-glauca species complex widespread from (sub)arctic Asia to Alaska, however, have two allied narrow endemics in northern Japan: a serpentine plant L. takedana endemic to the Yubari Mountains (Mt. Yubari) and a non-serpentine plant L. yesoensis endemic to the Taisetsu Mountains (Mt. Taisetsu). Elucidating their origins sheds light on drivers for secondary-speciation of widespread circumboreal plants. To infer phylogenetic distinctiveness of two narrow endemics with those related taxa, which contained 25 out of all the 29 species of the genus, chloroplast DNA (cpDNA), nuclear ribosomal (nrITS), two low copy nuclear gene (LCN) markers and genome-wide single-nucleotide polymorphism genotyping (MIG-seq) were used. In the result of cpDNA analyses, the Lagotis minor-glauca species complex formed a clade. Within the clade, L. yesoensis and a portion of L. glauca samples formed a subclade. However, monophyly of each of the four species was not supported. In the results of nrITS and two LCN analyses, L. takedana was monophyletic, while monophyly was not recovered for each L. yesoensis, L. glauca, and L. minor. Based on a Bayesian dating analysis using nrITS data, the age of the most recent common ancestor of L. takedana was Ma (95% confidence interval: 0.05-1.75 Ma). Possible scenario is that an ancestral linage being adapted to serpentine soils migrated into the alpine habitat of Mt. Yubari, that was formed with mountain uplift by the early Pleistocene, and subsequently reproductively isolated from non-serpentine populations and speciated. The contrasting result of L. yesoensis, that was phylogenetically indistinct, is possibly explained by incorrect taxonomy, or alternatively, shallow history and incomplete lineage sorting. In Mt. Taisetsu, massive volcanic eruptions had occurred the Early Pleistocene and even after the last glacial period, suggesting that alpine plants have not migrated into and established populations in Mt. Taisetsu until very recently. To fully resolve the phylogeny of the three species L. yesoensis, L. glauca, and L. minor, further analyses using high resolution molecular markers are needed. The present study illustrated that two narrow endemics in northern Japan diverged from the widespread species include phylogenetically distinctive and indistinctive species, owing to historical orogeny and ecological factors.

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“…Fujii (2007) investigated chloroplast variation in Pedicularis ser. Gloriosae, and found two major clades in Japan: one comprising populations of P. gloriosa, P. iwatensis, and P. ochiaiana, and the other including populations of P. nipponica.…”

Section: Review Of Plant Phylogeography In Japanmentioning

confidence: 99%

“…Members of the first clade were mostly found on the PO, while members of the second clade were found mostly on the JS. The diversification of these two major cpDNA clades might have been the result of regional environmental differences in the Japanese Islands (Fujii 2007). Tani et al (2003) also studied the genetic diversity of the nuclear and mitochondrial genomes in Pinus parviflora, which is composed of two varieties: P. parviflora var.…”

Section: Review Of Plant Phylogeography In Japanmentioning

confidence: 99%

Phylogeographic patterns of highland and lowland plant species in Japan

Ohsawa

Ide

2011

Alp Botany

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As a result of ecological and historical factors, plant species occurring in mountainous regions often exhibit complex phylogeographical structure. The aim of this review is to identify the main phylogeographic patterns of plant species in the Japanese Archipelago, based on 63 previous studies; in particular, the intention is to examine the effects of mountains on these patterns. We classified species into three groups based on their distribution along altitudinal gradients: alpine and sub-alpine; montane; and lowland plants. Identified patterns were diverse, but we found particular ecological/historical constraints influencing the distribution of intra-population variation and contributing to clear genetic differentiation in alpine and sub-alpine and montane species. Many alpine and subalpine species harbored greater variation in the highlands of central Japan, and this was the case for dominant montane species in central and western Japan. These areas are considered to have acted as refugia during the last glacial maximum. Some other highland species even survived in small refugia in northern Japan. Genetic differentiation was regularly found between either side of 38°N latitude, between the Japan Sea and the Pacific Ocean sides of the country and on either side of the Itoiga-Shizuoka Tectonic Line. Unexpectedly, strong structure has rarely been found in lowland species. Based on the observed patterns, we discuss possible reasons for the discrepancies among phylogeographical structures of different species within the same groups. In addition, the phylogeographical patterns detected are compared with floristic structures described in classical biogeographical terms.

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Chloroplast DNA phylogeography of Pedicularis ser. Gloriosae (Orobanchaceae) in Japan

Cited by 13 publications

References 44 publications

High mountain origin, phylogenetics, evolution, and niche conservatism of arctic lineages in the hemiparasitic genus Pedicularis (Orobanchaceae)

High mountain origin, phylogenetics, evolution, and niche conservatism of arctic lineages in the hemiparasitic genus Pedicularis (Orobanchaceae)

Serpentine mountain uplift in northern Japan triggered the divergence of a narrow endemic from a widespread (sub)arctic Asia-Alaska species complex ofLagotis(Plantaginaceae)

Phylogeographic patterns of highland and lowland plant species in Japan

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