Novas espécies de Manihot (Euphorbiaceae) do Brasil Central

Mendoza, Moises; Simon, Marcelo F.; Arquelão, Thalyssa K. M.; Cavalcanti, Taciana Barbosa

doi:10.1590/2175-7860201869244

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Floristic and taxonomic studies have shown that species of this genus have problems of taxonomic delimitation due to the lack of taxonomic studies in Brazil. Nonetheless, several new species have been described in recent years (Silva et al 2016;Silva 2016;Silva et al 2017;Mendoza et al 2018), showing significant advances in knowledge of the diversity of the genus. However, little is known about the genetic diversity of these species, especially in the Central-West Region of Brazil.…”

Section: Introductionmentioning

confidence: 99%

Cross-amplification and characterization of microsatellite markers in species of Manihot Mill. (Euphorbiaceae) endemic to the Brazilian Cerrado

et al. 2020

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The genus Manihot Mill. contains about 120 species of which about 104 occur in Brazil. We tested the cross-amplification of ten microsatellite markers developed for Manihot esculenta in 15 species of Manihot endemic to the Brazilian Cerrado. We also evaluated the genetic diversity of Manihot irwinii, M. orbicularis, and M. purpureocostata. Ten pairs of primers were amplified among 14 species of Manihot. The percentage of polymorphic loci per species varied from 70 to 100 %. Nine markers showed amplification and polymorphism when evaluated on polyacrylamide gel. The markers were combined to form three sets for multiplex genotyping for genetic diversity analysis, and showed 51, 75, and 75 alleles in M. irwinii, M. orbicularis, and M. purpureocostata, respectively. The levels of genetic diversity for the transferred markers were high for the three species and proved to be useful for population genetics studies of species of Manihot endemic to the Cerrado. The results of this study will help to better understand the genetic diversity, taxonomy and relationships among species Manihot, and to develop conservation programs for the genus.

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Section: Introductionmentioning

confidence: 99%

Cross-amplification and characterization of microsatellite markers in species of Manihot Mill. (Euphorbiaceae) endemic to the Brazilian Cerrado

et al. 2020

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Conservation assessment of cassava wild relatives in central Brazil

et al. 2018

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Synopsis of Manihot Species (Euphorbiaceae) with Non-lobed or Pinnately Lobed Leaves

Cavalcanti

2020

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A synopsis of 20 species of Manihot Mill. with non-lobed or pinnately lobed leaves is presented. Six of these species were included in the section Brevipetiolatae Pax by Rogers and Appan in the latest treatment of the genus. Molecular analyses show this is not a monophyletic section, although it is useful as a practical matter to treat this as a morphologically readily delimited group. We evaluate the species previously included in section Brevipetiolatae sensu Rogers and Appan, typify names where necessary, and synonymize the section. Twenty species are clarified and six lectotypes are designated. Three species previously put into synonymy, M. brachystachys Pax & K. Hoffm., M. linearifolia Müll. Arg., and M. mattogrossensis Pax & K. Hoffm., are here resurrected, and M. graminiformis M. Mend. & T. B. Cavalc. is described as a new species. An identification key and comments on the most similar morphological species, as well as ecological aspects and distribution for each species, are included.

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Novas espécies de Manihot (Euphorbiaceae) do Brasil Central

Cited by 3 publications

References 12 publications

Cross-amplification and characterization of microsatellite markers in species of Manihot Mill. (Euphorbiaceae) endemic to the Brazilian Cerrado

Cross-amplification and characterization of microsatellite markers in species of Manihot Mill. (Euphorbiaceae) endemic to the Brazilian Cerrado

Conservation assessment of cassava wild relatives in central Brazil

Synopsis of Manihot Species (Euphorbiaceae) with Non-lobed or Pinnately Lobed Leaves

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