The polyploidy revolution then… and now: Stebbins revisited

DE Soltis, CJ Visger, PS Soltis - American journal of botany, 2014‏ - Wiley Online Library
Polyploidy has long been considered a major force in plant evolution. G. Ledyard Stebbins,
Jr., an architect of the Modern Synthesis, elegantly addressed a broad range of topics, from …

Molecular phylogenetics of Echinopsis (Cactaceae): Polyphyly at all levels and convergent evolution of pollination modes and growth forms

BO Schlumpberger, SS Renner - American Journal of Botany, 2012‏ - Wiley Online Library
• Premise of the study: In its current circumscription, Echinopsis with 100–150 species is one
of the largest and morphologically most diverse genera of Cactaceae. This diversity and an …

Molecular phylogeny and character evolution in terete-stemmed Andean opuntias (Cactaceae− Opuntioideae)

CM Ritz, J Reiker, G Charles, P Hoxey, D Hunt… - Molecular phylogenetics …, 2012‏ - Elsevier
The cacti of tribe Tephrocacteae (Cactaceae–Opuntioideae) are adapted to diverse climatic
conditions over a wide area of the southern Andes and adjacent lowlands. They exhibit a …

Correlations among chromosome numbers, nuclear DNA contents and climatic variables of South American Cactaceae in a phylogenetic context

ML Las Peñas, K Bauk, N Rossi… - Biological Journal of …, 2024‏ - academic.oup.com
Cactaceae are American members of arid and semi-arid regions and are also present in
tropical forests and temperate climates. The taxonomy is complex owing to large …

Phylogenetic reconstruction of the genus Tephrocactus (Cactaceae) based on molecular, morphological, and cytogenetical data

ML Las Peñas, R Kiesling, G Bernardello - Taxon, 2019‏ - Wiley Online Library
Tephrocactus comprises species mainly endemic to Argentina. Molecular phylogenetic
analyses of all proposed species of the genus as well as classical (chromosome number …

Karyotypes, heterochromatin, and physical map** of 18S-26S rDNA in Cactaceae

ML Las Peñas, JD Urdampilleta… - … and Genome Research, 2009‏ - karger.com
Karyotype analyses in members of the four Cactaceae subfamilies were performed.
Numbers and karyotype formula obtained were: Pereskioideae= Pereskia aculeata (2n= 22; …

Classical and molecular cytogenetics and DNA content in Maihuenia and Pereskia (Cactaceae)

ML Las Peñas, JD Urdampilleta, B López-Carro… - Plant Systematics and …, 2014‏ - Springer
We studied cacti species of the subfamilies Pereskioideae (five species of the southern
clade) and both species of Maihuenioideae using molecular cytogenetic techniques and …

Molecular cytogenetic insights into the evolution of the epiphytic genus Lepismium (Cactaceae) and related genera

NC Moreno, LD Amarilla, ML Las Peñas… - Botanical Journal of …, 2015‏ - academic.oup.com
Abstract Changes in chromosome structure and number play an important role in plant
evolution. This was investigated in the Neotropical epiphytic cacti: all Lepismium spp. and …

Karyotype, heterochromatin, and physical map** of 5S and 18-5.8-26S rDNA genes in Setiechinopsis (Cactaceae), an Argentine endemic genus

ML Las Peñas, R Kiesling, G Bernardello - Haseltonia, 2011‏ - BioOne
Setiechinopsis is a monotypic Argentine endemic genus (S. mirabilis) of the tribe
Trichocereeae. It is one of the most difficult cacti to find and grows in lowlands and brackish …

Chromosome numbers in some cacti of western North America—IX

MA Baker, DJ Pinkava - Haseltonia, 2018‏ - BioOne
Chromosome numbers are determined for 524 individuals belonging to 107 taxa, including
nothotaxa, within Cactaceae. Chromosome morphology was uniform within and among …