Results 141 to 150 of about 17,851 (240)

Niche expansion of polyploid cytotypes shaped the phylogeographical history of the Salix retusa complex in the European Alpine System

Background and Aims Alpine plants exhibit diverse postglacial recolonization patterns following the last glacial periods. Polyploidization may have impacted these dynamics by introducing ecological and physiological novelties that facilitate adaptation ...
Hörandl, Elvira, Pittet, Loïc, Wagner, Natascha D, Kosiński, Piotr   +3 more
core   +1 more source

Recurrent polyploid origins and chloroplast phylogeography in the Arabis holboellii complex (Brassicaceae)

, 2001
Arabis holboellii is a North American member of the Brassicaceae that can reproduce via sex or apomixis. Previous studies have shown sexual individuals to be diploid, whilst apomictic individuals can be diploid (and aneuploid) or polyploid (typically ...
Sharbel, T., Mitchell-Olds, T.
core   +1 more source

Ploidy‐Level, Spore Size, and Morphological Variation of Plagiogyria adnata (Plagiogyriaceae) Along an Elevational Cline on Yakushima Island, Japan

New Zealand Journal of Botany, Volume 64, Issue 2, June 2026.
Yakushima Island is a major biodiversity hotspot where complex environmental gradients and high endemism provide an ideal setting for studying plant evolution. In this study, we investigated the relationships among ploidy variation, morphology, and environmental factors in populations of Plagiogyria adnata, including the variety P.
Diego Tavares Vasques, Ryutaro Koda, Tao Fujiwara, Narumi Nakato, Atsushi Ebihara   +4 more
wiley   +1 more source

Pitfalls and missing links in current understanding of 4D genomes

Quantitative Biology, Volume 14, Issue 2, June 2026.
Abstract The spatial and temporal organization of the genome—collectively termed the 4D genome—is pivotal for regulating gene expression, maintaining genome stability, and guiding development. The convergence of chromosome conformation capture technologies, super‐resolution microscopy, and single‐cell epigenomics has transformed our understanding of ...
Michael Q. Zhang
wiley   +1 more source

A role for environmental niche divergence in the rapid radiation of Nicotiana section Suaveolentes (Solanaceae)

TAXON, Volume 75, Issue 3, June 2026.
Abstract Nicotiana sect. Suaveolentes is a group that has undergone recent and rapid radiation, a clade that originated ca. six million years ago and has since rapidly speciated throughout Australia, with a few taxa on Pacific Islands and one in Namibia (Africa). Post‐tetraploidisation, species in N. sect.
Charlotte Phillips, Maïté Guignard, Luiz A. Cauz‐Santos, Maarten J.M. Christenhusz, Leylson Ferreira de Araújo, Felipe Nollet, Mark W. Chase, Steven Dodsworth   +7 more
wiley   +1 more source

Cytotaxonomic studies in the Artemisia ludoviciana polyploid complex of the Pacific Northwest

The Artemisia ludoviciana polyploid complex is a highly polymorphic assembledge of eight taxa in the Pacific Northwest, with a chromosome base number of x=9. A cytogenetic analysis of this complex was carried out to determine the sources of its variation,
Estes, James R.
core  

Wheat's war against stripe rust: Integrating host immunity, genomics and breeding for durable resistance

The Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Wheat (Triticum aestivum L.), a foundation of global food security, faces persistent threats from stripe rust caused by Puccinia striiformis f. sp. tritici (Pst). The pathogen thrives in cool and humid environments and regularly causes epidemics that lead to severe yield losses.
Farkhandah Jan, Mukesh Rathore, Dinesh Kumar Saini, Ayushi Singh, Naeela Qureshi, Nikita Aggarwal, Mahpara Bashir, Mehnaz Shakeel, Vikas Gupta, Sundeep Kumar, Rajeev Kumar Varshney, Reyazul Rouf Mir   +11 more
wiley   +1 more source

Can ploidy changes propel the evolution of allogamy in a selfing species complex?

BMC Plant Biology
Background The transition to self-fertilization has occurred repeatedly across diverse plant groups, and the evolutionary consequences of selfing typically suggest that a shift toward outcrossing is unlikely.
Ana García-Muñoz, Camilo Ferrón, Celia Vaca-Benito, Carlos Olmedo-Castellanos, María Nazaret Martínez-Gómez, Tatiana López-Pérez, Mohammed Bakkali, Sílvia Castro, Mariana Castro, João Loureiro, A. Jesús Muñoz-Pajares, Mohamed Abdelaziz   +11 more
doaj   +1 more source

Identification of resistance sources and genomic regions regulating spot blotch resistance in Asian bread wheat (Triticum aestivum L.) via genome‐wide association study

The Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Spot blotch (SB), caused by Bipolaris sorokiniana, is a major yield‐limiting disease of wheat (Triticum aestivum L.) in the warm, humid agroclimatic zones of South Asia. The development of resistant cultivars through molecular approaches offers a sustainable strategy for managing this disease.
Nikita Aggarwal, Xinyao He, Mukesh Rathore, Farkhandah Jan, Vikas Gupta, Reyazul Rouf Mir, Pawan K. Singh   +6 more
wiley   +1 more source

Overcoming breeding constraints in polyploid oat from evolutionary insights

Polyploidy provides adaptive advantages in plants by buffering deleterious mutations1,2. While polyploidization can enhance agronomic traits such as increased biomass, known as the gigas effect1–4, increasing genetic gain in polyploid crops remains a ...
Yin, H., Cui, X., Zou, Z., Bai, X., Liu, X., Liu, Y., Liu, Z., Bao, Z. ; https://orcid.org/, Zhang, Z., Sun, M., Zhang, Y., Dong, Z., He, J., Zheng, L., Wang, D., Zhou, Y., Wu, Y., Li, M.   +17 more
core   +1 more source