Results 81 to 90 of about 3,086 (187)

From bottleneck to boom: Polyploidy, genetic instability and response to artificial selection resolve the peanut paradox

The Plant Journal, Volume 124, Issue 6, December 2025.
SUMMARY This study, the second in a three‐part series, shows how peanut's polyploid origin enabled rapid diversification and enhanced domestication potential. Building on the knowledge that cultivated peanut (Arachis hypogaea) originated from a narrow hybridization between Arachis duranensis and Arachis ipaënsis less than 10 000 years ago, we are ...
Samuele Lamon, Brian L. Abernathy, Soraya C. M. Leal‐Bertioli, David J. Bertioli   +3 more
wiley   +1 more source

Apomixis in Genista salzmannii DC. (Fabaceae) [PDF]

, 1991
Genista apomixis is described for the first time in two populations of Genista salzmannii DC.: the first is diploid and the second one tetraploid. There was no female meiosis and the megaspore mother cell functioned as an unreduced megaspore, which led ...
Diana, Silvana, Villa, Rosalba Sebastiana   +1 more
core  

The polyploid continuum and the landscape of polyploid genomic variation

American Journal of Botany, Volume 112, Issue 11, November 2025.
Abstract Polyploid research has traditionally distinguished between autopolyploids and allopolyploids on the basis of evolutionary origins, modes of inheritance, or chromosomal pairing behavior during meiosis. It has long been recognized, however, that a binary classification does not accurately reflect the complexity and diversity inherent to ...
Alex D. Twyford, Justin L. Conover, Jeff J. Doyle, Annaliese S. Mason, Douglas E. Soltis, Pamela S. Soltis, Jonathan F. Wendel   +6 more
wiley   +1 more source

Ecological and evolutionary consequences of ploidy-driven trait variation: insights from Saxifraga oppositifolia L.

Arctic Science
The ecological and evolutionary consequences of ploidy-driven trait variation, particularly for autopolyploids, remain poorly understood. Saxifraga oppositifolia L.
Pernille Bronken Eidesen, Anne Krag Brysting, Kathleen Rani Hagen, Simen Salomonsen Hjelle, Aloïs Revéret, Ingrid Vesterdal Tjessem, Martin Čertner, Jorge Gago, Mie Prik Arnberg, Johanna Behrisch, Katrín Björnsdóttir, Viktorie Brožová, Angeline J.H.M. Bruls, Kathrin Driehaus, Janna Einöder, Ragnhild Gya, Valentina Handle, Niki Meinert Hansen, Maria Huntsaar, Anne Hølmkjær Jacobsen, Kayden Kendrick, Christine Mikalsen, Eike Müller, Sondre Kaastad Sørsdal, Jóhannes Bjarki Urbancic Tómasson, Inger Kristine Volden   +25 more
doaj   +1 more source

Cytology of some Iranian Stipa (Poaceae) species and populations [PDF]

, 2006
Meiotic studies were performed on 16 populations of 13 Stipa species concerning polyploidy level, chiasma frequency and distribution, chromosome association and segregation.
M. Khosravi-Reineh, M. Sheidai, S. Attaei   +2 more
core   +1 more source

Synthetic Polyploidisation Enhances Fusarium graminearum Tolerance in Wheat by Reshaping the Transcriptome and Strengthening the Microbiome

Plant Biotechnology Journal, Volume 23, Issue 11, Page 5252-5278, November 2025.
ABSTRACT Polyploidisation is a natural evolutionary mechanism that enhances plant stress tolerance and environmental adaptability; however, its impact on microbiome homeostasis remains poorly understood. In this study, we selected a nascent euploid synthetic hexaploid wheat line (HG116; 2n = 6x = 42, BBAADD) by selfing a triploid F1 hybrid of Triticum ...
Xin He, Xiaolin Wang, Hao Li, Jiayong Shen, Mengchen Jiang, Xiaowei Zhang, Zeng Dong, Kai Sun, Fang Nie, Zhiwei Chen, Yun Zhou, Guoyong An, Ertao Wang   +12 more
wiley   +1 more source

Cytomictic Anomalous Male Meiosis and 2n Pollen Grain Formation in Mertensia echioides Benth. (Boraginaceae) from Kashmir Himalaya

The Scientific World Journal, 2014
Presently Mertensia echioides Benth. (Boraginaceae) collected from Kashmir Himalaya, India, is cytologically analyzed for the first time revealing 2n=2x=24 (diploid).
Reyaz Ahmad Malik, Raghbir Chand Gupta, Santosh Kumari, Akhtar Hussain Malik   +3 more
doaj   +1 more source

Polyploidy in Fruit Tree Crops of the Genus Annona (Annonaceae)

Frontiers in Plant Science, 2019
Genome duplication or polyploidy is one of the main factors of speciation in plants. It is especially frequent in hybrids and very valuable in many crops.
Carolina Martin, Maria. A. Viruel, Jorge Lora, José I. Hormaza   +3 more
doaj   +1 more source

Analysis of the progeny of unreduced male gametes producers and non-producers of Turnerasidoides (Passifloraceae) [PDF]

, 2014
La unión de gametos 2n ha tenido un importante papel en el origen de los poliploides de Turnera sidoides. Sin embargo, como en este complejo la tasa de formación de neopoliploides es baja, el establecimiento de los mismos constituiría una etapa crítica ...
Kovalsky, Ivana Evelìn, Solis Neffa, Viviana Griselda   +1 more
core   +1 more source

De novo sequencing of the Hypericum perforatum L. flower transcriptome to identify potential genes that are related to plant reproduction sensu lato [PDF]

, 2015
Background: St. John's wort (Hypericum perforatum L.) is a medicinal plant that produces important metabolites with antidepressant and anticancer activities.
Barcaccia, Gianni, Francis, Sharbel Timothy, Galla, Giulio, Heiko, Vogel   +3 more
core   +1 more source