Results 31 to 40 of about 25,416 (239)

Wheat-barley hybridization – the last forty years [PDF]

open access: yes, 2013
Several useful alien gene transfers have been reported from related species into wheat (Triticum aestivum), but very few publications have dealt with the development of wheat/barley (Hordeum vulgare) introgression lines. An overview is given here of
A Blanco   +125 more
core   +1 more source

Rice Meiotic Chromosome Spread Preparation of Pollen Mother Cells

open access: yesBio-Protocol, 2014
In this protocol, we describe a simple and efficient method for meiotic chromosome spread preparation in rice pollen mother cells. Meiotic chromosome preparation by spreading itself is an important technique for plant cytogenetics (Higgins et al., 2004 ...
Xingwang Li, Changyin Wu
doaj   +1 more source

Effects of Colchicine on Populus canescens Ectexine Structure and 2n Pollen Production

open access: yesFrontiers in Plant Science, 2020
Triploid breeding is a central way to improve growth traits, timber quality, and stress resistance in Populus. In the present study, the morphology and viability of colchicine-induced 2n pollen, triploid production by crossing induced 2n pollen, and ...
Qing Zhou   +18 more
doaj   +1 more source

OsMT2b Regulates Pollen Development and ROS Homeostasis in a Photoperiod-Dependent Manner. [PDF]

open access: yesPlant Biotechnol J
ABSTRACT Reactive oxygen species (ROS) are signalling molecules that promote programmed cell death in animal and plant systems. However, their role in rice (Oryza sativa L.) anther development is unclear. In this study, we show that lower transcript levels of the metallothionein gene OsMT2b in japonica rice plants obtained by RNA interference (RNAi ...
He Y   +9 more
europepmc   +2 more sources

Transcriptional integration of paternal and maternal factors in the Arabidopsis zygote [PDF]

open access: yes, 2017
In many plants, the asymmetric division of the zygote sets up the apical-basal axis of the embryo. Unlike animals, plant zygotes are transcriptionally active, implying that plants have evolved specific mechanisms to control transcriptional activation of ...
Aichinger, Ernst   +9 more
core   +2 more sources

Meiotic progression in arabidopsis is governed by complex regulatory interactions between SMG7, TDM1, and the meiosis I-specific cyclin TAM [PDF]

open access: yes, 2010
International audienceMeiosis is a modified cell division that produces four haploid nuclei from a single diploid cell in two rounds of chromosome segregation.
Bulankova, Petra   +4 more
core   +5 more sources

Meiotic irregularities associated to cytomixis in Buddleja iresinoides (Griseb.) Hosseus. (Buddlejaceae) and Castilleja arvensis Schltdl. & Cham. (Orobanchaceae)

open access: yesCaryologia, 2019
The current paper analyzes the male meiotic behavior in wild populations of Buddleja iresinoides and Castilleja arvensis from Piedmont areas of the Northwest Region of Argentina. Castilleja arvensis showed tetraploid number of chromosome of 2n = 24.
Aldo Ruben Andrada   +3 more
doaj   +1 more source

Gibberellins as a novel mutagen for inducing 2n gametes in plants

open access: yesFrontiers in Plant Science, 2023
The plant hormone gibberellin (GA) regulates many physiological processes, such as cell differentiation, cell elongation, seed germination, and the response to abiotic stress. Here, we found that injecting male flower buds with exogenous gibberellic acid
Yifan Zhao   +35 more
doaj   +1 more source

Temporal and spatial expression of genes involved in DNA methylation during reproductive development of sexual and apomictic Eragrostis curvula [PDF]

open access: yes, 2017
Recent reports in model plant species have highlighted a role for DNA methylation pathways in the regulation of the somatic-to-reproductive transition in the ovule, suggesting that apomixis (asexual reproduction through seeds) likely relies on RdDM ...
Echenique, Carmen Viviana   +9 more
core   +1 more source

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