Taxonomic significance of pollen morphology for species delimitation in Psidium (Myrtaceae)

Tuler, Amélia Carlos; Silva, Tatiane da; Carrijo, Tatiana Tavares; Garbin, Mário Luís; Mendonça, Cláudia Barbieri Ferreira; Peixoto, Ariane Luna; Gonçalves-Esteves, Vânia

doi:10.1007/s00606-016-1373-8

Cited by 24 publications

(21 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To infer the morphological similarities among the 24 species of Amphitecna, we performed a hierarchical clustering analysis on a matrix that included 15 flower traits. The data were analyzed using the unweighted pair group method with arithmetic mean (UPGMA, Sokal and Michener 1958) and the Gower index (Gower 1971), allowing a simultaneous use of binary and continuous characters (Dunn and Everitt 1982;Yang et al 2007;Zanella et al 2011;Tuler et al 2017; Svoboda and Ballard 2018; Wahlsteen Table 1. Species currently recognized in Amphitecna (Bignoniaceae) and their respective geographical distribution.…”

Section: Methodsmentioning

confidence: 99%

“…To infer the morphological similarities among the 24 species of Amphitecna , we performed a hierarchical clustering analysis on a matrix that included 15 flower traits. The data were analyzed using the unweighted pair group method with arithmetic mean ( UPGMA , Sokal and Michener 1958 ) and the Gower index ( Gower 1971 ), allowing a simultaneous use of binary and continuous characters ( Dunn and Everitt 1982 ; Yang et al 2007 ; Zanella et al 2011 ; Tuler et al 2017 ; Svoboda and Ballard 2018 ; Wahlsteen and Tyler 2019 ). All morphological characters were obtained from original species descriptions ( Gentry 1980 ; Gentry 1982b ; Burger and Gentry 2000 ; Ortiz-Rodriguez et al 2016 ), herbarium specimens deposited at MEXU ( www.ibdata.ib.unam.mx ), and type specimens available online ( https://www.gbif.org/ and https://plants.jstor.org/ ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Gómez-Domínguez¹,

Ortiz-Rodríguez²,

Velasco-Espino³

et al. 2021

View full text Add to dashboard Cite

In this study, we analyzed the morphological affinities of the 24 species of Amphitecna based on detailed morphological studies and multivariate cluster analyses. Our results suggest that the genus Amphitecna includes six morphological groups that can be easily distinguished based on floral and fruits characteristics: A. donnell-smithii group, A. macrophylla group, A. megalophylla group, A. molinae group, A. spathicalyx group, and A. steyermarkii group. A new species from Mexico, Amphitecna fonceti, is described. This new species is clearly differentiated by the predominantly ramiflorous inflorescences bearing multiple flowers per shoot, buds rounded at the apex, large flowers with a transverse fold in the corolla throat, calyx surface pubescent and strongly costate, and fruits elliptic, apiculate at the apex. We discuss the characteristics of each morphological group and their geographical distribution, provide a detailed description of the new species including ethnobotany notes, and propose the re-establishment of the giant-leaved species A. megalophylla.

show abstract

Section: Methodsmentioning

confidence: 99%

“…To infer the morphological similarities among the 24 species of Amphitecna , we performed a hierarchical clustering analysis on a matrix that included 15 flower traits. The data were analyzed using the unweighted pair group method with arithmetic mean ( UPGMA , Sokal and Michener 1958 ) and the Gower index ( Gower 1971 ), allowing a simultaneous use of binary and continuous characters ( Dunn and Everitt 1982 ; Yang et al 2007 ; Zanella et al 2011 ; Tuler et al 2017 ; Svoboda and Ballard 2018 ; Wahlsteen and Tyler 2019 ). All morphological characters were obtained from original species descriptions ( Gentry 1980 ; Gentry 1982b ; Burger and Gentry 2000 ; Ortiz-Rodriguez et al 2016 ), herbarium specimens deposited at MEXU ( www.ibdata.ib.unam.mx ), and type specimens available online ( https://www.gbif.org/ and https://plants.jstor.org/ ).…”

Section: Methodsmentioning

confidence: 99%

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Gómez-Domínguez¹,

Ortiz-Rodríguez²,

Velasco-Espino³

et al. 2021

View full text Add to dashboard Cite

show abstract

“…For the Pay Paso site, there is no information on the shape of Psidium pollen grains. The determination of the Myrtaceae genus by pollen recovered in archeological sites using only light microscopy (LM) is notably troublesome and especially difficult at the species level ( Tuler et al, 2017 ). Therefore, more evidence is needed to corroborate the early presence of Psidium in Mesoamerican and southern South American archeological sites.…”

Section: Cultural History Of Psidium Guajavamentioning

confidence: 99%

The Taming of Psidium guajava: Natural and Cultural History of a Neotropical Fruit

et al. 2021

View full text Add to dashboard Cite

Guava (Psidium guajava L., Myrtaceae) is a Neotropical fruit that is widely consumed around the world. However, its evolutionary history and domestication process are unknown. Here we examine available ecological, taxonomic, genetic, archeological, and historical evidence about guava. Guava needs full sunlight, warm temperatures, and well-distributed rainfall throughout the year to grow, but tolerates drought. Zoochory and anthropochory are the main forms of dispersal. Guava’s phylogenetic relationships with other species of the genus Psidium are unclear. A group of six species that share several morphological characteristics are tentatively accepted as the Psidium guajava complex. DNA analyses are limited to the characterization of crop genetic diversity within localities and do not account for possible evolutionary and domestication scenarios. A significant amount of archeological information exists, with a greater number and older records in South America than in Mesoamerica, where there are also numerous historical records. From this information, we propose that: (1) the guava ancestor may have originated during the Middle or Late Miocene, and the savannas and semi-deciduous forests of South America formed during the Late Pleistocene would have been the most appropriate ecosystems for its growth, (2) the megafauna were important dispersers for guava, (3) dispersal by humans during the Holocene expanded guava’s geographic range, including to the southwestern Amazonian lowlands, (4) where its domestication may have started, and (5) with the European conquest of the Neotropics, accompanied by their domestic animals, new contact routes between previously remote guava populations were established. These proposals could direct future research on the evolutionary and domestication process of guava.

show abstract

“…One of the works that can help is the study of the morphology of pollen grains, since it is based on the typical differences presented by each plant species, mainly with respect to size and shape (Bauermann & Neves 2005). In this sense, current palynology is an important tool for taxonomic and environmental studies (Cancelli et al 2007), as was done by Tuler et al (2016) for species of the Psidium genus, and by Correa et al (2018) where the pollen morphology showed to be a significant source of information for taxonomic purposes.…”

Section: Introductionmentioning

confidence: 99%

Campomanesia adamantium and Campomanesia pubesncens are distinct species? Use of palynology and molecular markers in taxonomy

et al. 2020

View full text Add to dashboard Cite

The species Campomanesia adamantium and C. pubescens present a great morphological variability, with the existence of morphotypes and the indication of a possible hybridization process occurring between them. Thus, the aim of this study was to characterize the Campomanesia adamantium species and morphotypes of species Campomanesia pubescens through palynological reviews and with the use of molecular markers to assist the taxonomic description of the species. The plant material was collected in the experimental field of Federal University of Jataí, in bloom of 2014, and analyzes were performed in the Morphology Laboratory of Plant Taxonomy and in the Laboratory of Genetics and Plant Breeding belonging to the same institution. Analysis of scanning electron microscopy was performed at the Federal University of Lavras. Important information was found that reinforce the possibility of cross between Campomanesia adamantium and Campomanesia pubescens, generating morphotypes intermediaries, indicating a possible hybridisation process. It can be concluded that Campomanesia adamantium is farthest from the morphotype 2 from Campomanesia pubescens, and morphotypes 1 and 3 are intermediate between them, possibly being hybrids.

show abstract

Taxonomic significance of pollen morphology for species delimitation in Psidium (Myrtaceae)

Cited by 24 publications

References 26 publications

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

The Taming of Psidium guajava: Natural and Cultural History of a Neotropical Fruit

Campomanesia adamantium and Campomanesia pubesncens are distinct species? Use of palynology and molecular markers in taxonomy

Contact Info

Product

Resources

About