Systematic Implications of Pollen Morphology in Caryopteris (Labiatae)

Abu‐Asab, Mones; Nowicke, Joan W.; Su, Tao

doi:10.2307/2419422

Cited by 27 publications

(7 citation statements)

References 6 publications

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“…Probable synapomorphies of Ajugoideae include pollen exine with supratectal spines, spinules or verrucae, and exine with branched to granular columellae. These character states are widespread in Ajugoideae 16 90 91 and rare (branched columellae) or absent (spinules and verrucae) elsewhere in the Lamiaceae.…”

Section: Taxonomy and Nomenclaturementioning

confidence: 99%

A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

Cantino

Olmstead

et al. 2016

Sci Rep

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165

190

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Lamiaceae, the sixth largest angiosperm family, contains more than 7000 species distributed all over the world. However, although considerable progress has been made in the last two decades, its phylogenetic backbone has never been well resolved. In the present study, a large-scale phylogenetic reconstruction of Lamiaceae using chloroplast sequences was carried out with the most comprehensive sampling of the family to date (288 species in 191 genera, representing approximately 78% of the genera of Lamiaceae). Twelve strongly supported primary clades were inferred, which form the phylogenetic backbone of Lamiaceae. Six of the primary clades correspond to the current recognized subfamilies Ajugoideae, Lamioideae, Nepetoideae, Prostantheroideae, Scutellarioideae, and Symphorematoideae, and one corresponds to a portion of Viticoideae. The other five clades comprise: 1) Acrymia and Cymaria; 2) Hymenopyramis, Petraeovitex, Peronema, and Garrettia; 3) Premna, Gmelina, and Cornutia; 4) Callicarpa; and 5) Tectona. Based on these results, three new subfamilies—Cymarioideae, Peronematoideae, and Premnoideae—are described, and the compositions of other subfamilies are updated based on new findings from the last decade. Furthermore, our analyses revealed five strongly supported, more inclusive clades that contain subfamilies, and we give them phylogenetically defined, unranked names: Cymalamiina, Scutelamiina, Perolamiina, Viticisymphorina, and Calliprostantherina.

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Section: Taxonomy and Nomenclaturementioning

confidence: 99%

A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

Cantino

Olmstead

et al. 2016

Sci Rep

Self Cite

165

190

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“…Pollen studies in Nepetoideae have been limited to specific geographic areas or based on the less number of species using LM techniques (Afzal‐Rafii, ; Moon, Vinckier, Smets, & Huysmans, ; Waterman, ). As compared to the subfamily Lamioideae for which many pollen studies have been published (Abu‐Asab & Cantino, ; Abu‐Asab, Cantino, Nowicke, & Sang, ), the Nepetoideae are still unknown from pollen micromorphological point of view and only few genera were described using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques (Celenk, Dirmenci, Malyer, & Bicakci, ; Harley, ; Harley, Paton, Harley, & Cade, ; Hassan, Osman, & El Garf, ; Kahraman, Celep, & Dogan, ; Moon et al, ).…”

Section: Introductionmentioning

confidence: 99%

Taxonomic study of subfamily Nepetoideae (Lamiaceae) by polynomorphological approach

Gul

Ahmad

Zafar

et al. 2019

Microscopy Res & Technique

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The present study is insight into pollen morphology for characterizing species and their utility in the taxonomic separation of certain taxa of subfamily Nepetoideae (Lamiaceae) from Pakistan.The pollen micromorphology of 11 species of the Nepetoideae was analyzed and documented using light microscopy and scanning electron microscopy (SEM) for both qualitative and quantitative characteristics. Most species have hexazonocolpate pollen grains but trizonocolpate and tetrazonocolpate pollen with circular and oval amb were also rarely observed in Mentha spicata.The basic pollen shape in most of the studied species was subspheroidal but prolate grains were also observed in M. spicata, S. coccinea, and S. plebeia. The exine sculpturing of Nepetoideae pollen was taxonomically very informative particularly at subfamily level. Observations of exine sculpturing with SEM revealed various types of pollen grains: reticulate, bireticulate, microreticulate, perforate, aerolate, and gammate. The bireticulate type further subdivided into three subtypes based on the number of secondary lumina in each primary lumen and is characterized by varying characteristics of the secondary reticulum and primary muri. A significant variation was observed in colpus surface ornamentation. The maximum polar diameter was found in O. americanum (58 ± 5.8 μm) and the maximum equatorial diameter observed in O. basilicum (50.25 ± 1.37 μm). Pollen features of the studied species were discussed and compared based on the current taxonomical concepts. The results showed that pollen traits of the subfamily Nepetoideae was found significant to classify the taxa. Furthermore, pollen features provide additional evidence to distinguish macromorphologically similar taxa from each other. K E Y W O R D S micromorphology, Nepetoideae, pollen, SEM, taxonomic significance

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“…The leaves are strongly aromatic. The familial assignment and infrageneric classification of Caryopteris were determined based on their floral, fruit, and pollen morphology [12] and on phylogenetic analysis [13]. Caryopteris comprises seven species at present.…”

Section: Introductionmentioning

confidence: 99%

Intraspecific Phylogenetic Relationships of Caryopteris incana in the Tsushima Islands, Japan, Using DNA Sequence Analysis

Ando¹,

Watanabe²,

Matsubara³

et al. 2015

AJPS

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Caryopteris incana is a perennial shrub distributed in the temperate zone of the East Asia. It is found in West Kyushu in Japan, where it is designated as an endangered species. Tsushima, Nagasaki, which experienced repeated connection and fragmentation between the Korean Peninsula and Japan, is an island on the route along which C. incana moved to Japan from continental Asia. We conducted field work and confirmed the genetic structure of populations using DNA sequence analysis to construct a detailed distribution map and clarify the intraspecific phylogenetic relationships of C. incana in Tsushima Island. We confirmed 72 populations in Tsushima. Using the leaves of individuals cultivated from seeds collected from each natural population, we analyzed the chloroplast and nuclear DNA sequence variations. Among the populations, sequence variations were confirmed in six regions of chloroplast DNA, and six haplotypes, including base substitutions, were distinguished. Two haplotypes were mainly divided at the border of the northern part of the southern island in Tsushima. One population in the northwestern part of the north island showed a haplotype derived from the southern part. This finding revealed that the distribution of C. incana had been artificially influenced. Several haplotypes were confirmed by sequence variations in the northern populations, but only one haplotype in the southern populations, suggesting that C. incana on the north island had separated early from the south island in Tsushima.

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Systematic Implications of Pollen Morphology in Caryopteris (Labiatae)

Cited by 27 publications

References 6 publications

A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

Taxonomic study of subfamily Nepetoideae (Lamiaceae) by polynomorphological approach

Intraspecific Phylogenetic Relationships of Caryopteris incana in the Tsushima Islands, Japan, Using DNA Sequence Analysis

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