Cytomixis in maize haploids
Webinant way in maize (Chang and Coe, 2009; Geiger, 2009). This method was first reported in 1959 with the discovery of maize haploid inducer Stock 6, producing 2%–3% maternal haploids when outcrossed as a male. Over the years, haploid induction rates (HIR) increased to 8%–10% due to development of high WebWe induced a fdr1 mutation in maize which makes haploid plants male fertile due to first division restitution; the optimum sodium azide treatment on maize kernels has been identified. Sodium azide mutagenesis experiments …
Cytomixis in maize haploids
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WebTwo haploid-inducing lines, MHI and M741H, were used for the production of maternal haploids. Haploids were obtained from all maternal genotypes involved in the experiment, including dent, flint and flintxdent maize. The maternal genotype had a significant influence on the frequency of haploids obtained. The frequency ranged from 2.7% to 8.0%. WebCytomixis was extensively seen in maize haploids treated with colchicine. Genomic imbalance in the form of haploidy is probably responsible for the occurrence of cytomixis. …
http://agronomyjournal.usamv.ro/pdf/vol.LVI/Art57.pdf WebMaize doubled haploid (DH) technology provides fixed, pure lines from a donor parent. Protocols for breeding of DH lines are available for over 250 crop species, and over 300 DH-derived cultivars have been developed in 12 species worldwide (Forster and Thomas, 2005).
WebOct 10, 2024 · We calculated the actual doubling rate (survival rate × double rate), 38.23%, 20.64%, and 19.4% are the highest actual doubling rates induced by APM, colchicine, and oryzalin, respectively.... WebMar 25, 2024 · Röber F K, Gordillo G A and Geiger H H. 2005. In vivo haploid induction in maize-performance of new inducers and significance of doubled haploid lines in hybrid breeding. Maydica 50: 275–83. Rotarenco V A, Dicu G, State D and FuiaS. 2010. New inducers of maternal haploids in maize. Maize Genetics Cooperation Newsletter 84: 1–7.
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Webidentify haploids by flow cytometry and to correlate the nuclear DNA content to the morphological and morphometric traits of the seeds that gave rise to them. In addition, … trusted vs untrusted networkWebThe ideal gigas state was attained in the shoot apex of the tetraploid maize, but was modified in the mature leaf, and the authors developed the concept of the ideal giga state, based on the relation of chromosome numbers in the diploid and tetraPloid. Comparison was made of 10 monoploid and 10 diploid plants in each of 6 lines (3 inbred lines and 3 … philip roth net worthWebGenetic control of maternal haploidy in maize (Zea mays L.) and selection of haploid inducing lines Authors P Lashermes 1 , M Beckert Affiliation 1 Station d'amélioration des plantes, Domaine de Crouelle, INRA, F-63039, Clermont-Ferrand Cedex, France. PMID: 24232205 DOI: 10.1007/BF00265341 trusted vcs telegramWebJul 18, 2024 · Haploids are used to develop doubled haploids (DHs), which have many potential uses. The development of DH lines in maize … philip roth md huntsville alWebAbstract — Cytomixis has been described in many plant species, but not in Salvia miltiorrhiza Bunge, a well-known Chinese herb. The present study reports spontaneous … trusted vin checkWebOct 23, 2024 · Haploid inducer lines are routinely used in plant breeding for maize only, and thus represent an exception. Maize haploid inducer lines all derive from a particular genotype discovered in the 1950s that possesses the ability to induce the development of haploid embryos on a maize line of interest upon pollination with the inducer pollen. philip roth novels rankedWebCytomixis is migration of the nuclei from one plant cell to another through intercellular channels of a special type (cytomictic channels), differing from plasmodesmata in their … trusted used cell phone sites