Pollen and seed morphology of Ruellia L., Phaulopsis Willd. and Dyschoriste Nees (Acanthaceae: Ruellioideae: Ruellieae) of Yemen

Al-Hakimi, Anisa S.; Latiff, A.

doi:10.1007/s00606-014-1035-7

Cited by 14 publications

(6 citation statements)

References 19 publications

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“…The phylogenetic tree (Fig. 1) was highly resolved with a topology consistent with previous phylogenetic analyses by Middleton et al (2014) and Middleton et al (2015). The new species was nested in a clade within Primulina with high branch support (PP = 1.00).…”

Section: Resultssupporting

confidence: 76%

“…For the phylogenetic analyses, sequences were newly acquired for each population of this new species and also the morphologically similar species P. bobaiensis Li, Pan and Zhang (Table 1), were added to a reduced Old World Gesneriaceae matrix of Middleton et al (2014) and Middleton et al (2015) and the matrices realigned manually. The resulting matrix contained 185 samples (177 species) with 26 species of Primulina included, covering all 39 genera currently recognized in the advanced Asiatic and Malesian Gesneriaceae at present (Möller et al, 2009; Möller et al, 2011; Weber, Clark & Möller, 2013; Middleton et al, 2014; Middleton et al, 2015). The tree was rooted with the outgroup taxon Tetraphyllum (Möller et al, 2009).…”

Section: Methodsmentioning

confidence: 99%

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Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Hong

Keene

Qiu

et al. 2019

PeerJ

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A new Primulina species from Guangdong, China with an unusual inflorescence is described here. Primulina anisocymosa is vegetatively most similar to P. bobaiensis. It can be distinguished from all species within Primulina morphologically by its unique zigzag monochasial cyme and infructescence. To confirm the phylogenetic relationships and generic placement of this species, not only morphological anatomical features but also chromosome and DNA sequence data were examined and analysed here. Two samples from different populations identified as Primulina anisocymosa are monophyletic and were nested in a monophyletic clade within Primulina with high branch support. The somatic chromosome number of the new species is also reported (2n = 36), supporting its placement in the genus.

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Section: Resultssupporting

confidence: 76%

Section: Methodsmentioning

confidence: 99%

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Hong

Keene

Qiu

et al. 2019

PeerJ

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“…In this study, the obvious barcoding gap was found in psbA-trnH or ITS2 + psbA-trnH , the overlap between interspecific and intraspecific variation of ITS, ITS2 or matK was less, but was more in rbcL . Compared with rbcL in Osmunda japonica , psbA-trnH had higher interspecific diversity and larger barcoding gap, was suitable for the distinguishment of Osmunda japonica 35 . Wilcoxon signed rank tests confirmed that the interspecific variation of ITS2 in Rehmannia was extremely significantly greater, and the variation degree was successively ITS2 > ITS > psbA-trnH > matK > rbcL , indicating ITS2 had obvious variability 36 .…”

Section: Discussionmentioning

confidence: 99%

The screening and identification of DNA barcode sequences for Rehmannia

Duan

Wang

Zeng

et al. 2019

Sci Rep

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In this study, ITS, ITS2, matK, rbcL and psbA-trnH in Rehmannia were successfully amplified and sequenced, but some ITS sequences need to be proofread according to ITS2 sequences. Compared with rbcL, matK and psbA-trnH, ITS and ITS2 had higher mutation rate and more information sites, and ITS2 had higher interspecific diversity and lower intraspecific variation in Rehmannia, but the interspecific genetic variation of rbcL and matK was lower. Furthermore, the obvious barcoding gap was found in psbA-trnH or ITS2 + psbA-trnH, and the overlap between interspecific and intraspecific variation of ITS, ITS2 or matK was less. In addition, the phylogenetic tree based on ITS or ITS2 indicated that R. glutinosa, R. chingii or R. henryi with obvious monophyly could be successfully identified, but R. piasezkii and R. elata were clustered into one branch, R. solanifolia could not be distinguished from R. glutinosa, and R. chingii was closer to R. henryi. In phylogenetic tree based on psbA-trnH or ITS2 + psbA-trnH, cultivars and wild varieties of R. glutinosa could be distinguished, were clearly separated from other Rehmannia species, and cultivars or wild varieties of R. glutinosa could be also distinguished by matK. Taken together, ITS2 has great potential in systematic study and species identification of Rehmannia, the combination of ITS2 and psbA-trnH might be the most suitable DNA barcode for Rehmannia species.

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“…Morphology of the testa cells of the seeds of Acanthaceae is variable and has been used in circumscribing taxa at different ranks ( Kippist, 1842 , Schaffnit, 1906 , Oehm, 1932 , Bremekamp, 1944 ; Hedrén, 1988 , Hedrén, 1989 , Graham, 1988 , Ensermu et al., 1992 , Immelman, 1990 , Balkwill et al., 1996 , Balkwill and Getiliffe Norris, 1988 , Balkwill and Campbell-Young, 1999 , Darbyshire, 2008 , Greuter and Rankin, 2010 , Darbyshire et al., 2011 , Rueangsawang et al., 2012 , Tripp et al., 2013 , Kiel and McDade, 2014 , Al-Hakimi and Latiff, 2015 ). For example, seeds of Ruellieae have spiral hygroscopic mucilaginous hairs ( Kippist, 1842 , Greuter and Rankin, 2010 , Duan, 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Wuacanthus (Acanthaceae), a new Chinese endemic genus segregated from Justicia (Acanthaceae)

et al. 2016

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A new genus, Wuacanthus Y.F. Deng, N.H. Xia & H. Peng (Acanthaceae), is described from the Hengduan Mountains, China. Wuacanthus is based on Wuacanthus microdontus (W.W.Sm.) Y.F. Deng, N.H. Xia & H. Peng, originally published in Justicia and then moved to Mananthes. The new genus is characterized by its shrub habit, strongly 2-lipped corolla, the 2-lobed upper lip, 3-lobed lower lip, 2 stamens, bithecous anthers, parallel thecae with two spurs at the base, 2 ovules in each locule, and the 4-seeded capsule. Phylogenetic analyses show that the new genus belongs to the Pseuderanthemum lineage in tribe Justicieae. Wuacanthus is closely related to Pseuderanthemum but differs from the latter by its shorter corolla tube and two minute spurs at the base of each anther-theca. W. microdontus is assessed with the status EN B2ab (iii) based on the IUCN Red List Categories and Criteria.

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Pollen and seed morphology of Ruellia L., Phaulopsis Willd. and Dyschoriste Nees (Acanthaceae: Ruellioideae: Ruellieae) of Yemen

Cited by 14 publications

References 19 publications

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

The screening and identification of DNA barcode sequences for Rehmannia

Wuacanthus (Acanthaceae), a new Chinese endemic genus segregated from Justicia (Acanthaceae)

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