TAILIEUCHUNG - Gamma-induced infraspecific polyploidy via cytomixis-mediated syncyte formation in Papaver somniferum (Papaveraceae)

This is the first report on the phenomenon of syncyte manifestation through cytomictic transmigration in Papaver somniferum L. The occurrence characteristics and cytological depictions of cytomixis in the meiotic course of gamma-irradiated population reveal the mechanism leading to the origin of the cell fusions/syncytes. | Turkish Journal of Botany Research Article Turk J Bot (2013) 37: 530-536 © TÜBİTAK doi: Gamma-induced infraspecific polyploidy via cytomixis-mediated syncyte formation in Papaver somniferum (Papaveraceae) Girjesh KUMAR, Sana NASEEM* Plant Genetics Laboratory, Department of Botany, University of Allahabad, Allahabad-211002, India Received: Accepted: Published Online: Printed: Abstract: This is the first report on the phenomenon of syncyte manifestation through cytomictic transmigration in Papaver somniferum L. The occurrence characteristics and cytological depictions of cytomixis in the meiotic course of gamma-irradiated population reveal the mechanism leading to the origin of the cell fusions/syncytes. The event was more frequent in meiosis I and rare in meiosis II, indicating that the process atrophies at the end of the first meiotic division. The degree of occurrence of the phenomenon virtually concurred with the increase in the treatment dose of gamma irradiation. The phenomenon also affected the qualitative composition of postmeiotic products, . tetrads and pollen grains. Heterosized pollen grains ranging from large to small size are also reported. In general, the occurrence of large-sized pollens is associated with unreduced gametes/syncytes and is an indication of the production of 2n pollens. Although occurring in low frequency, syncytes could play a decisive role in plant evolution as they can lead to the production of plants with higher ploidy levels. They may have potential applications in germplasm improvement in the sense of diversity and thus should be given more attention in future studies. Key words: Gamma irradiation, cytomixis, syncyte, heterosized pollen grains, poppy 1. Introduction Cytomixis is the phenomenon of migration of nuclear material, as well as other organelles and cytoplasm, between cells through the cytomictic channels. .

• Nông nghiệp
• Gamma irradiation
• Heterosized pollen grains
• Papaver somniferum
• Cytological depictions of cytomixis
• Pollen mother cell
• Makrofol DE 7 2
• Vicker’s hardness
• Makrofol polymer nuclear track detector
• Gamma irradiation to Makrofol polymer
• In vitro
• In vitro conditions
• Gamma irradiation on shoot
• Survival percent in strawberry
• Novel mutant
• Gamma irradiation in tuberose
• Tuberose (Polyanthes tuberosa L)
• Novel mutants and their stability
• Millet grains
• Total bacterial count
• Selected millet grains
• Heat treatment and gamma irradiation
• Sprout inhibition
• Post harvest quality
• Kufri Jyoti variety of potato
• Physical properties
• Gamma irradiation on sprout inhibition
• Gamma irradiation on growth
• Postharvest characters
• Tuberose varieties
• Sucrose provide energy
• Gamma irradiation on the viability
• Cellulase production of some filamentous fungi
• Linked glucose polymer
• Higher CMCase secretion
• Nuclear engineering and technology
• Effects of temperature and solution composition
• Evaporation of iodine
• Estimating volatility of iodine under gamma irradiation
• Iodine under gamma irradiation
• Shelf life
• Shelf life of custard apple
• Post harvest treatments
• Combined effect of gamma irradiation
• Effects of gamma irradiation
• Reactive red 24 aqueous solutions
• Reactive Red 24
• The irradiation dose
• Color removal efficiency increased
• Gamma rays
• Seedling vigour
• Mungbean [Vigna radiata (L
• )]
• Seed germination
• Polygenic variability
• Mutagenic effects
• Yield traits
• Soybean with gamma irradiation
• Influence of gamma dose on growth
• Gamma dose on growth
• Bulb parameters in tuberose varieties
• The formation of ferulic acid
• Gamma oryzanol hydrolysis
• Under alkaline condition
• Using ultrasonic irradiation
• Rice bran oil processing
• Fruit setting
• Gamma ray irradiation
• In vitro germination
• Fruit set in Citrus
• Fluorescein diacetate
• Bengal gram
• Black gram
• Seed treatment chemicals
• Abnormal seedlings
• Fruit quality
• Sensory parameters
• Ambient storage condition
• Floral characters
• Gladiolus as influenced
• Ionising radiations
• Observed in vM2
• BMC Chemistry
• Superabsorbent hydrogels
• Starch superabsorbent hydrogels
• Pure cellulose derivative based gels
• Peanut kernels
• Microbial load
• Moisture content
• D10 value
• Graphene oxide
• Preparing reduced graphene oxide material
• Ethanol solution by gamma irradiation
• Water desalination
• Reduction of graphene oxide
• Hydrogel reinforced with bentonite
• Gamma irradiation for metal absorption
• Natural based sodium carboxymethyl cellulose
• Atomic absorption spectrometry
• Absorb metal ions
• Bacillus amyloliquefaciens
• Salt stress
• APX1 expression
• B
• amyloliquefaciens
• Embryonic calli
• NaCl stress
• LD50 and LC50
• Embryonic callus of rice
• Regeneration capacity was determined
• Gamma radiation
• Sunflower achenes
• Germination and seedling emergence curves
• Slopes comparison