Results 81 to 90 of about 875 (160)

Mass Taxon-Sampling as a Strategy towards Illuminating the Natural History of Campanula (Campanuloideae) [PDF]

, 2012
Speciose clades usually harbor species with a broad spectrum of adaptive strategies and complex distribution patterns, and thus constitute ideal systems to disentangle biotic and abiotic causes underlying species diversification. The delimitation of such
Akaydin, Galip, Borsch, Thomas, Cellinese, Nico, Crowl, Andrew A., Fraunhofer, Katharina, Haberle, Rosemarie, Ikinci, Nursel, Kamari, Georgia, Mansion, Guilhem, Mavrodiev, Evgeny, Oganesian, Marine, Parolly, Gerald, Phitos, Dimitrios, Raus, Thomas   +13 more
core   +1 more source

Polyploidy Expands the Range of Centaurium (Gentianaceae) [PDF]

, 2021
The Mediterranean region is one of the most important worldwide hotspots in terms of number of species and endemism, and multiple hypotheses have been proposed to explain how diversification occurred in this area.
Andrés Camacho, María Cristina, Arroyo Marín, Juan, Díaz Lifante, Zoila María, Escudero Lirio, Marcial, Jiménez Lobato, Vania, Maguilla Salado, Enrique   +5 more
core   +1 more source

The holocentric chromosome microevolution: From phylogeographic patterns to genomic associations with environmental gradients

Molecular Ecology, Volume 33, Issue 24, December 2024.
Abstract Geographic isolation and chromosome evolution are two of the major drivers of diversification in eukaryotes in general, and specifically, in plants. On one hand, range shifts induced by Pleistocene glacial oscillations deeply shaped the evolutionary trajectories of species in the Northern Hemisphere.
José Ignacio Márquez‐Corro, Santiago Martín‐Bravo, José Luis Blanco‐Pastor, Modesto Luceño, Marcial Escudero   +4 more
wiley   +1 more source

Morphological characterization and cytological studies of the green-stemmed and the red-stemmed Basella alba

Notulae Scientia Biologicae, 2023
Basella alba is an underutilized vegetable with ethnobotanical importance used for culinary as well as medicinal purposes in many parts of the world.
Abolade O. BOLAJI, Atanda S. OLADEJO, Oluwatobi I. ADENIRAN   +2 more
doaj   +1 more source

Shifts in Chromosome Evolution Rates Shape the Karyotype Patterns of Leafcutting Ants

Ecology and Evolution, Volume 14, Issue 11, November 2024.
Modern phylogenetic methods were used to explore how chromosome number and other karyotypic traits vary across species. The focus was on testing whether karyotypic traits follow a Brownian motion model (indicating neutral changes) or are influenced by phylogenetic constraints.This research elucidates the mechanisms underlying chromosomal evolution and ...
Danon Clemes Cardoso, Maykon Passos Cristiano   +1 more
wiley   +1 more source

Uniparental silencing of 5S rRNA genes in plant allopolyploids – insights from Cardamine (Brassicaceae)

The Plant Journal, Volume 119, Issue 3, Page 1313-1326, August 2024.
Significance Statement A scheme showing evolutionary relationships among Cardamine allopolyploids and their diploid progenitors. Arrows depict the direction of interspecific hybridization. Drawings after the species name indicate ribosomes and their ribosomal RNA (rRNA) composition. Individual rRNA molecules are indicated by colored lines.
Terezie Mandáková, Alice Krumpolcová, Roman Matyášek, Roman Volkov, Martin A. Lysak, Ales Kovařík   +5 more
wiley   +1 more source

Fine-Scale to Flora-Wide Phylogenetic Perspectives on Californian Plant Diversity, Endemism, and Conservation [PDF]

, 2019
The California Floristic Province (CA-FP) encompasses North America's Mediterranean-type climatic region and is a global biodiversity hotspot in temperate North America. Fine-scale phylogenetic studies and increasing scrutiny of morphological, ecological,
Baldwin, BG
core  

How can chromosome number variation indicate evolutionary relationships between the Caatinga, the Cerrado and the Atlantic forest? [PDF]

, 2020
Orientador: Fernando Roberto MartinsDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de BiologiaResumo: Neste trabalho testamos as hipóteses de que 1) a alta frequência de poliploides em um bioma poderia indicar que esse bioma tem ...
Gloria, Tiago Pereira Ribeiro da, 1988-
core  

A cytosystematic study of the Dianthus virgineus complex (Caryophyllaceae) in the Central Mediterranean

Journal of Systematics and Evolution, Volume 62, Issue 4, Page 589-602, July 2024.
Taxa belonging to the Dianthus virgineus L. complex in the Central Mediterranean have been delimited mainly with qualitative morphological data and still await quantitative investigations. Here, we examined phenotypic features of nuclear genome organization testing for species boundaries in this complex.
Jacopo Franzoni, Giovanni Astuti, Gianluigi Bacchetta, Giulio Barone, Fabrizio Bartolucci, Liliana Bernardo, Angelino Carta, Fabio Conti, Gianniantonio Domina, Božo Frajman, Gianpietro Giusso del Galdo, Duilio Iamonico, Mauro Iberite, Luigi Minuto, Marco Sarigu, Ana Terlević, Alessia Turini, Lucia Varaldo, Daniel Volgger, Lorenzo Peruzzi   +19 more
wiley   +1 more source

Reductional dysploidy and genome size diversity in Pooideae, the largest subfamily of grasses (Poaceae)

Plant Systematics and Evolution
Abstract The nuclear genome sizes of 59 species from 33 genera of the Poaceae subfamily Pooideae were investigated by flow cytometry. This subfamily is characterized by a wide range of holoploid (2C values) and monoploid (1Cx values) genome sizes and mean chromosome sizes, including both the highest and some of ...
Grit Winterfeld, Natalia Tkach, Martin Röser   +2 more
openaire   +2 more sources