ArticleChromosoma2004
Spontaneous chromosome doubling results from nuclear fusion during in vitro maize induced microspore embryogenesis.
Article in Chromosoma, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 65 citations in OpenAlex.
- Genes and genetics belong to maize haploid induction.Frontiers in plant science · 2025Review
- Irradiated Pollen-Induced Parthenogenesis for Doubled Haploid Production in Sunflowers (Plants (Basel, Switzerland) · 2023Article
- The Roads to Haploid Embryogenesis.Plants (Basel, Switzerland) · 2023Review
- Suppression of Metacaspase- and Autophagy-Dependent Cell Death Improves Stress-Induced Microspore Embryogenesis in Brassica napus.Plant & cell physiology · 2021Article
- Isolation of Staged and Viable Maize Microspores for DH Production.Methods in molecular biology (Clifton, N.J.) · 2021Article
- Methods for Chromosome Doubling.Methods in molecular biology (Clifton, N.J.) · 2021Review
- In vitro androgenesis: spontaneous vs. artificial genome doubling and characterization of regenerants.Plant cell reports · 2020Review
- Doubled haploid technology for line development in maize: technical advances and prospects.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Review
- Genome-Wide Association Study of Haploid Male Fertility in Maize (Frontiers in plant science · 2018Article
- QTL mapping for haploid male fertility by a segregation distortion method and fine mapping of a key QTL qhmf4 in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2017Article
- Induction of Embryogenesis in Brassica Napus Microspores Produces a Callosic Subintinal Layer and Abnormal Cell Walls with Altered Levels of Callose and Cellulose.Frontiers in plant science · 2015Article
- NO, ROS, and cell death associated with caspase-like activity increase in stress-induced microspore embryogenesis of barley.Journal of experimental botany · 2012Article
- Enhanced induction of microspore embryogenesis after n-butanol treatment in wheat (Triticum aestivum L.) anther culture.Plant cell reports · 2008Article
- The relationship between induction of embryogenesis and chromosome doubling in microspore cultures.Protoplasma · 2006Article
- Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A multidisciplinary study was carried out to analyse the chromosome doubling process during the early stages of in vitro maize microspore embryogenesis. The main stages (microspore derivatives) that were formed in the course of the culture were analysed. Chromosome number was determined from squashed cells, and DNA content was measured by cytometry. In parallel, an ultrastructural analysis of the microspore derivatives demonstrated the occurrence of a nuclear fusion process. It seems likely that nuclear fusion ensures chromosome doubling at early stages of induced microspore embryogenesis. It occurs precisely at the 5/7 day stage in the embryonic domain and probably leads to polyploidy in the endosperm domain of the microspore derivatives. As a conclusion a scheme summarises the results and proposes an interpretation of the sequence of chromosome doubling events during early maize microspore embryogenesis. Understanding of this process will be important for future efforts to increase the percentage of homozygous plants for crop improvement.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.