<p><strong>Re-evaluation of <em>Opuntia matudae </em>(Cactaceae)</strong></p>

Abstract

A detailed morphological and molecular study on Opuntia matudae and O. hyptiacantha is presented. These two species have been long considered to belong to the same taxon, although no investigations were carried out in depth. Moreover, no published phylogenetic study of the genus Opuntia include both species. Our data support the recognition of O. matudae and O. hyptiacantha as different and unrelated species.

Beyond endemism, expanding conservation efforts: a relictual Pleistocene distribution and first report of the prickly pear cactus,Opuntia bonaerensis,in Brazil and Uruguay

“…chromosome counts, phenology, pollinators and floral biology, geographical distribution), 5) the absence of detailed studies regarding morphology across the distribution of species, and 6) the deficiency of phylogenetic data (Majure and Puente 2014). However, various efforts have been recently carried out to increase the knowledge of the group across all the range of distribution yielding valuable information to decisions regarding species delimitation (Powell et al, 2004; Majure et al, 2012a, 2012b, 2017; Font 2014; Realini et al, 2014a, 2014b; Las Peñas et al, 2017; Köhler et al, 2018; Martínez-González et al, 2019; Majure et al, 2020). Here, we highlighted the use of multiple approaches, such as molecular data, morphological characters, herbarium and field studies across geographical distribution as powerful tools to reveal accurate species identification in a problematic group.…”

Beyond endemism, expanding conservation efforts: What can new distribution records reveal?

“…chromosome counts, phenology, pollinators and floral biology, geographical distribution), 5) the absence of detailed studies regarding morphology across the distribution of species, and 6) the deficiency of phylogenetic data (Majure and Puente 2014). However, various efforts have been recently carried out to increase the knowledge of the group across all the range of distribution yielding valuable information to decisions regarding species delimitation (Powell et al, 2004;Majure et al, 2012aMajure et al, , 2012bMajure et al, , 2017Font 2014;Realini et al, 2014aRealini et al, , 2014bLas Peñas et al, 2017;Köhler et al, 2018;Martínez-González et al, 2019;Majure et al, 2020). Here, we highlighted the use of multiple approaches, such as molecular data, morphological characters, herbarium and field studies across geographical distribution as powerful tools to reveal accurate species identification in a problematic group.…”

Opuntia chiangiana (Cactaceae, Opuntioideae): A taxonomic re-evaluation and geographic distribution

“…To infer the phylogenetic relationships of Opuntia chiangiana within the Opuntia sensu stricto clade an alignment was made based on the taxonomic sampling employed by Majure et al (2012), including Mexican species (Martínez-González et al, 2015a; 2015b; 2019; 2020; 2021). Sequences were generated from the ITS nuclear region (GenBank accession number OL437058-OL437060), ppc (GenBank accession number in process), mat K (GenBank accession number OL420672-OL420674), ycf1 (GenBank accession number in process), trn L intron, the trn L-F spacer (GenBank accession number OL456165-OL456167) and psbj-petA (GenBank accession number OL473943-OL473945).…”