Results 101 to 110 of about 22,551 (300)

Loss of E3 ligase HvST1 function substantially increases distal crossover frequency

New Phytologist, Volume 249, Issue 3, Page 1325-1341, February 2026.
Summary This study characterizes the function of a grass‐specific E3 ubiquitin ligase, HvST1, in regulating synapsis and crossover (CO) formation during meiosis in barley (Hordeum vulgare). In large‐genome cereals, COs are predominantly restricted to distal chromosomal regions, limiting genetic recombination and breeding flexibility.
Jamie Neil Orr, Sybille Ursula Mittmann, Luke Ramsay, Dominika Lewandowska, Abdellah Barakate, Malcolm Macaulay, Nicola McCallum, Robbie Waugh, Isabelle Colas   +8 more
wiley   +1 more source

The low molecular weight fraction of compounds released from immature wheat pistils supports barley pollen embryogenesis [PDF]

, 2015
Pollen embryogenesis provides a useful means of generating haploid plants for plant breeding and basic research. Although it is well established that the efficacy of the process can be enhanced by the provision of immature pistils as a nurse tissue, the ...
Hans-Peter Mock, Jochen Kumlehn, Rico Lippmann, Swetlana Friedel   +3 more
core   +2 more sources

Dissecting meiotic recombination based on tetrad analysis by single-microspore sequencing in maize

Nature Communications, 2015
Meiotic recombination drives eukaryotic sexual reproduction and the generation of genome diversity. Tetrad analysis, which examines the four chromatids resulting from a single meiosis, is an ideal method to study the mechanisms of homologous ...
Xiang Li, Lin Li, Jianbing Yan
semanticscholar   +1 more source

Cold Shock for Cold Tolerance: Phytohormone Dynamics in Sorghum Provides Insights

Plant Direct, Volume 10, Issue 1, January 2026.
ABSTRACT The loss of yield due to cold stress during the early reproductive phase poses challenges to the expansion of sorghum cultivation into temperate regions. A better understanding of the physiological mechanisms is crucial for rapid progress in breeding cold‐tolerant sorghum varieties.
Luisa Neitzert, Natalja Kravcov, Yudelsy Antonia Tandron Moya, Steffen Windpassinger, Nicolaus von Wirén, Rod Snowdon, Benjamin Wittkop   +6 more
wiley   +1 more source

Methodologies and Considerations in Evaluating Heat Stress Response and Thermotolerance of Pollen Grains

Physiologia Plantarum, Volume 178, Issue 1, January/February 2026.
ABSTRACT Elevated temperatures severely disrupt pollen function, posing a major threat to agricultural productivity. While research into pollen thermotolerance is rapidly expanding, the quest to identify and develop heat‐tolerant crops is challenged by a lack of consistent methodological considerations and experimental design principles.
Gad Miller, Max Frencken, Helena Sapeta, Fabienne Gidding, Danny Geelen, Pawan Kumar, Ivo Rieu, Michal Lieberman‐Lazarovich   +7 more
wiley   +1 more source

Cultivating Callus from Anthers and Regenerating Haploid Plants in Lilium longiflorum

Horticulturae
In vitro anther culture is a technique used to produce haploid plants when regenerating varieties with specific traits. To generate haploid plants with preferred characteristics, an anther culture technique was established for Lilium longiflorum “Show Up”
Yingyang Li, Yufan Li, Xuanke Dong, Yanfang Cai, Jiren Chen, Rong Liu, Fan Zhu   +6 more
doaj   +1 more source

High Frequency Production of Doubled Haploid Rapeseed Plants by Direct Colchicine Treatment of Isolated Microspores

浙江大学学报. 农业与生命科学版, 2000
Techniques for microspore culture of Brassica napus have been improved rapidly, and embryogen-esis has been achieved in a wide range of genotypes. Plants regenerated from microspore-derived embryoids can be haploid, diploid or polyploid.
ZHOU Wei-jun, HAGBERG Per
doaj   +1 more source

Pollen development in Mill. (Annonaceae). Implications for the evolution of aggregated pollen [PDF]

, 2009
In most flowering plants, pollen is dispersed as monads. However, aggregated pollen shedding in groups of four or more pollen grains has arisen independently several times during angiosperm evolution.
Lora, Jorge, Testillano, Pilar S., Risueño, María Carmen, Hormaza Urroz, José Ignacio, Herrero Romero, María   +4 more
core   +1 more source

Microspore culture reveals complex meiotic behaviour in a trigenomic Brassica hybrid

BMC Plant Biology, 2015
BackgroundDevelopment of synthetic allohexaploid Brassica (2n = AABBCC) would be beneficial for agriculture, as allelic contributions from three genomes could increase hybrid vigour and broaden adaptation.
A. Mason, Junko Takahira, Chhaya Atri, B. Samans, A. Hayward, W. Cowling, J. Batley, M. Nelson   +7 more
semanticscholar   +1 more source

Pseudo-embryogenic structures in anther and isolated microspore cultures in vitro: a cautionary guide

Czech Journal of Genetics and Plant Breeding, 2012
This review describes sources of structures of non-microspore origin observed in anther and microspore cultures. Various characteristics of these structures may cause a wrong diagnosis of these structures as embryos or cell/tissue clusters of microspore ...
Ugur BAL, Mehran E. SHARIATPANAHI, Antonio J. CASTRO, Delphine EMERY, Christophe CLÉMENT, Maryam DEHESTANI-ARDAKANI, Khadijeh MOZAFFARI, Alisher TOURAEV   +7 more
doaj   +1 more source