Phylogenetic analysis of Lappula Moench (Boraginaceae) based on molecular and morphological data

Huang, Jianfeng; Zhang, Mingli; Cohen, James I.

doi:10.1007/s00606-013-0772-3

Cited by 15 publications

(20 citation statements)

References 28 publications

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“…Current data are also in agreement with molecular phylogenies provided by Khoshsokhan- Mozaffar et al (2018) that transferred closely related species L. sessili ora to Rochelia genus. This conclusion has previously been suggested by various studies (Khoush et al 2010;Huang et al 2013;Mozaffar et al 2013;Rolfsmeier 2013;Weigend et al 2013). Moreover, the owers and nutlet features (two of them undeveloped) indicated more a nity of the species to Rochelia genus than Lappula (Popov 1974).…”

Section: Discussionsupporting

confidence: 76%

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Ebadi¹,

Nikzat²

2021

Preprint

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Background: The macro/micro-morphology of nutlets in 11 species (and 22 accessions) of the Boraginaceae family was investigated by stereomicroscope and scanning electron microscopy to evaluate the taxonomic relevance of these traits. To evaluate the phylogenetic significance of the character evolution, available DNA sequence data from GenBank were combined with selected original nutlet data, and phylogenetic analysis was performed.Results: The Rochelieae nutlets' shape varied from ovoid (ovoid, ovoid-triangular, and ovoid-rectangular) to the pyramid. Six major patterns were recognized based on nutlet ultrastructure characters. Rocheliae is characterized by a transition from “without appendage” to “with tubercles and prickles” on the nutlet disk, and also by a shift from “lack of prickles” to “glossy prickles”.Conclusions: The results indicated that the nutlet ultrastructure pattern of Rochelieae is systematically informative at the genus level, but not at the species level. The results showed that glochid is not an ancestral trait but is a synapomorphy and the transition to this trait occurred in the genus Lappula. The Close boundary of nutlet microstructures between L. barbata and L. microcarpa was discussed.

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Section: Discussionsupporting

confidence: 76%

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Ebadi¹,

Nikzat²

2021

Preprint

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“…Current data are also in accordance with molecular phylogenies provided by (Khoshsokhan-Mozaffar et al 2018 ) that transferred closely related species L. sessiliflora to Rochelia genus. This conclusion has previously been suggested by various studies (Khoush et al 2010 ; Huang et al 2013 ; Mozaffar et al 2013 ; Rolfsmeier 2013 ; Weigend et al 2013 ). Moreover, the flowers and nutlet features (two of them undeveloped) designated more affinity of the species to Rochelia genus than Lappula (Popov 1974 ).…”

Section: Discussionsupporting

confidence: 75%

Nutlet micromorphology and character evolution of Lappula species (Boraginaceae) and its systematic implications

Ebadi

Nikzat

2021

Bot Stud

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Background The macro/micro-morphology of nutlets in 11 species (and 22 accessions) of the Boraginaceae family was investigated using stereomicroscope and scanning electron microscopy to evaluate the taxonomic relevance of the traits. To evaluate the phylogenetic significance of the character evolution, phylogenetic analysis was carried out by comparing available DNA sequence data from GenBank with selected original nutlet data. Results The Rochelieae nutlets' shape varied from ovoid (ovoid, ovoid-triangular, and ovoid-rectangular) to pyramid. Six major patterns were recognized based on the nutlet ultrastructure characters. Rocheliae is characterized by a transition from “without appendage” to “with tubercles and prickles” on the nutlet disk, and also via a shift from “lack of prickles” to “glossy prickles”. Conclusions The results show that the nutlet ultrastructure pattern of Rochelieae is systematically informative at the genus level, but not at the species level. Findings demonstrated that glochid is not an ancestral trait but is a synapomorphy and the transition to this trait occurred in the genus Lappula. The close boundary of nutlet microstructures between L. barbata and L. microcarpa has been discussed.

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“…Although L. sinaica has now been formally placed in the new genus Pseudolappula by Khoshsokhan-Mozaffar et al (2018) , the related species, L. occultata , has remained in the genus Lappula . Current phylogenetic studies do not support the two taxa as allied species, as L. sinaica forms a distinct monospecific clade, while L. occultata is nested in the Lappula clade ( Huang and Zhang 2012 ; Huang et al 2013 ; Khoshsokhan-Mozaffar et al 2018 ). Because of this obvious conflict between previous taxonomic treatments for L. occultata and the aforementioned molecular studies, further examination of these two species is needed, including past voucher specimens used.…”

Section: Introductionmentioning

confidence: 93%

“…Recent phylogenetic studies on the Rochelieae ( Boraginaceae ) have greatly advanced our understanding of this plant group, and the circumscription of some genera has been changed ( Huang et al 2013 ; Saadati et al 2017 ; Khoshsokhan-Mozaffar et al 2018 ), the genus Lappula being one of these. Phylogenetic analyses indicate that Lappula is not monophyletic, with the species of this genus placed in three different lineages ( Khoshsokhan-Mozaffar et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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A new combination in Pseudolappula (Boraginaceae, Rochelieae) based on morphological, molecular and palynological evidence

Liu¹,

Xu²,

Ying³

et al. 2021

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Lappula sinaica was recently transferred to the monotypic genus Pseudolappula based on phylogenetic studies, while the related species, L. occultata, has remained in the genus Lappula. In this study, morphological, molecular, and palynological evidence supports that L. occultata should be transferred to the genus Pseudolappula. Both L. occultata and P. sinaica share a combination of nutlets features that distinguish them from Lappula: a longer adaxial keel and a linear attachment scar. Phylogenetic analysis based on ITS and trnL-F strongly supports L. occultata as the sister taxon of P. sinaica. In addition, pollen grains of these two species are 3-syncolporate with 3 alternating pseudocolpi, which is significantly different from the grains of Lappula taxa. Based on the above evidence, the new combination Pseudolappula occultata is proposed.

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Phylogenetic analysis of Lappula Moench (Boraginaceae) based on molecular and morphological data

Cited by 15 publications

References 28 publications

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Nutlet micromorphology and character evolution of Lappula species (Boraginaceae) and its systematic implications

A new combination in Pseudolappula (Boraginaceae, Rochelieae) based on morphological, molecular and palynological evidence

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Phylogenetic analysis of Lappula Moench (Boraginaceae) based on molecular and morphological data

Cited by 15 publications

References 28 publications

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Nutlet Micromorphology and Character Evolution of Some Species of Rochelieae (Boraginaceae) and Its Systematic Implications

Nutlet micromorphology and character evolution of Lappula species (Boraginaceae) and its systematic implications

﻿A new combination in Pseudolappula (Boraginaceae, Rochelieae) based on morphological, molecular and palynological evidence

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A new combination in Pseudolappula (Boraginaceae, Rochelieae) based on morphological, molecular and palynological evidence