Results 51 to 60 of about 875 (160)

The meso‐octoploid Heliophila variabilis genome sheds a new light on the impact of polyploidization and diploidization on the diversity of the Cape flora

The Plant Journal, Volume 116, Issue 2, Page 446-466, October 2023., 2023
SUMMARY Although the South African Cape flora is one of the most remarkable biodiversity hotspots, its high diversity has not been associated with polyploidy. Here, we report the chromosome‐scale genome assembly of an ephemeral cruciferous species Heliophila variabilis (~334 Mb, n = 11) adapted to South African semiarid biomes. Two pairs of differently
Yile Huang, Xinyi Guo, Kang Zhang, Terezie Mandáková, Feng Cheng, Martin A. Lysak   +5 more
wiley   +1 more source

Island species radiation and karyotypic stasis in Pachycladon allopolyploids [PDF]

, 2010
Background Pachycladon (Brassicaceae, tribe Camelineae) is a monophyletic genus of ten morphologically and ecogeographically differentiated, and presumably allopolyploid species occurring in the South Island of New Zealand and ...
Terezie Mandáková, Peter B Heenan, Martin A Lysak   +2 more
core   +1 more source

A non‐homogeneous model of chromosome‐number evolution to reveal shifts in the transition patterns across the phylogeny

New Phytologist, Volume 238, Issue 4, Page 1733-1744, May 2023., 2023
Summary Changes in chromosome numbers, including polyploidy and dysploidy events, play a key role in eukaryote evolution as they could expediate reproductive isolation and have the potential to foster phenotypic diversification. Deciphering the pattern of chromosome‐number change within a phylogeny currently relies on probabilistic evolutionary models.
Anat Shafir, Keren Halabi, Marcial Escudero, Itay Mayrose   +3 more
wiley   +1 more source

Primeras medidas del tamaño del genoma en Carduncellusy los géneros afines Femeniasia y Phonus (Asteraceae, Cardueae), con datos para 21 táxones [PDF]

, 2021
Genome size of 18 species of the genus Carduncellus, two species of the related genus Phonus and the monotypic genus Femeniasia (F. balearica) has been assessed by flow cytometry for the first time.
Garcia, Sónia, Garnatje , Teresa, Hidalgo, Oriane, Romo, Àngel, Vallés, Joan, Vilatersana, Roser   +5 more
core   +5 more sources

Has the Polyploid Wave Ebbed?

Frontiers in Plant Science, 2020
There was a wave of whole genome duplications (WGD) during and subsequent to the K-Pg interface, which was followed by an increase in the proportion of species that were polyploid.
Donald A. Levin
doaj   +1 more source

The origin of cultivated mangosteen (Garcinia mangostana L. var. mangostana): Critical assessments and an evolutionary‐ecological perspective

Ecology and Evolution, Volume 13, Issue 3, March 2023., 2023
Abstract Mangosteen (Garcinia mangostana var. mangostana) is a popular tropical fruit, yet many aspects of its biology and evolutionary history are little known. Its origin remains contentious, although recent findings suggest G. mangostana L. var. malaccensis (Hook. f.) Nazre (synonym: G. malaccensis Hook. f.) as the sole progenitor.
T. L. Yao, M. Nazre, D. McKey, R. Jalonen, J. Duminil   +4 more
wiley   +1 more source

Are diversification rates and chromosome evolution in the temperate grasses (Pooideae) associated with major environmental changes in the Oligocene-Miocene? [PDF]

, 2017
The Pooideae are a highly diverse C3 grass subfamily that includes some of the most economically important crops, nested within the highly speciose core-pooid clade.
Catalán Rodríguez, Pilar, Escudero Lirio, Marcial, Minaya, Miguel Ángel, Pimentel Pereira, Manuel, Sahuquillo Balbuena, Elvira   +4 more
core   +5 more sources

The Impact of Reconstruction Methods, Phylogenetic Uncertainty and Branch Lengths on Inference of Chromosome Number Evolution in American Daisies (Melampodium, Asteraceae).

PLoS ONE, 2016
Chromosome number change (polyploidy and dysploidy) plays an important role in plant diversification and speciation. Investigating chromosome number evolution commonly entails ancestral state reconstruction performed within a phylogenetic framework ...
Jamie McCann, Gerald M Schneeweiss, Gerald M Schneeweiss, Tod F Stuessy, Jose L Villaseñor, Hanna Weiss-Schneeweiss   +5 more
doaj   +1 more source

State of the art in cytogenetics, insights into chromosome number evolution, and new C-value reports for the fern family Gleicheniaceae

Anais da Academia Brasileira de Ciências, 2021
Studies concerning the cytogenetics of Gleicheniaceae have been scarce, especially those employing evolutionary approaches. Two chromosome number evolutionary models have been hypothesized for Gleicheniaceae.
LUCAS VIEIRA LIMA, SAULO MARÇAL DE SOUSA, THAÍS ELIAS ALMEIDA, ALEXANDRE SALINO   +3 more
doaj   +1 more source

Early Diverging and Core Bromelioideae (Bromeliaceae) Reveal Contrasting Patterns of Genome Size Evolution and Polyploidy

Frontiers in Plant Science, 2020
The subfamily Bromelioideae is one of the most diverse groups among the neotropical Bromeliaceae. Previously, key innovations have been identified which account for the extraordinary radiation and species richness of this subfamily, especially in the so ...
Juraj Paule, Juraj Paule, Sascha Heller, Jefferson Rodrigues Maciel, Raquel F. Monteiro, Elton M. C. Leme, Elton M. C. Leme, Georg Zizka, Georg Zizka   +8 more
doaj   +1 more source