Results 91 to 100 of about 2,997 (195)

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

open access: yesThe 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   +3 more
doaj   +1 more source

Rapid identification of inflorescence type markers by genotyping-by-sequencing of diploid and triploid F1 plants of Hydrangea macrophylla

open access: yesBMC Genetics, 2019
Background The ornamental crop Hydrangea macrophylla develops highly attractive lacecap (wild type) or mophead inflorescences. The mophead trait, which is mostly favored by consumers, is recessively inherited by the INFLORESCENCE TYPE locus (INF).
Conny Tränkner   +5 more
doaj   +1 more source

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

open access: yes, 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   +1 more
core   +1 more source

Angiosperm polyploids and their road to evolutionary success [PDF]

open access: yes, 2010
The abundance of polyploidy among flowering plants has long been recognized, and recent studies have uncovered multiple ancient polyploidization events in the evolutionary history of several angiosperm lineages.
Fawcett, Jeffrey, Van de Peer, Yves
core   +2 more sources

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

open access: yesThe 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   +3 more
wiley   +1 more source

Evolutionary history of Hypericum perforatum L. [PDF]

open access: yes, 2011
The genus Hypericum is a highly diverse group of about 500 species. Among the Eurasian taxa, Hypericum perforatum L. and H. maculatum Crantz are representative examples with a largely overlapping distribution area in Central Europe.
Scheriau, Charlotte Luise
core   +1 more source

The polyploid continuum and the landscape of polyploid genomic variation

open access: yesAmerican 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   +6 more
wiley   +1 more source

Analysis of variation for apomictic reproduction in diploid Paspalum rufum [PDF]

open access: yes, 2014
Background and Aims: The diploid cytotype of Paspalum rufum (Poaceae) reproduces sexually and is self-sterile; however, recurrent autopolyploidization through 2n + n fertilization and the ability for reproduction via apomixis have been documented in one ...
Delgado Benarroch, Luciana   +5 more
core   +2 more sources

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

open access: yesPlant 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   +12 more
wiley   +1 more source

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

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