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GhGPAT12和GhGPAT25为一对位于陆地棉A12/D12染色体上编码甘油-3-磷酸酰基转移酶(GPAT)的旁系同源基因。GhGPAT12/25在发育早期的花药中特异表达,其转录本主要富集于绒毡层和花粉外壁。真核表达实验表明GhGPAT12/25具有sn-2酰基转移酶活性。CRISPR/Cas9介导的基因敲除实验发现GhGPAT12和GhGPAT25存在功能冗余,两基因的同时敲除导致彻底的雄...
SCR/SP11 encodes the male determinant of recognition specificity of self-incompatibility (SI) in Brassica species and is sporophytically expressed in the anther tapetum. Based on dominance relationshi...
Doubled haploidy breeding protocols have revolutionized the varietal development programmes in bread wheat, however, the protocols have not proved much efficient in durum wheat. Presently, the durum w...
The formation of pollen callus was induced when rice anthers, which contained microspores in the mid-uninucleate and late-uninucleate stage, were cultured. The ultrastructure of the microspores was al...
Rice pollen grains germinated more than 80% with low variation (standard deviation less than 10%) and their pollen tubes elongated to more than 150μm within one hour with a simple medium composed of 1...
Cooling treatments at different stages of pollen development lowered the percentage of fertilized spikelets through decreasing the number of engorged pollen grains per anther at anthesis. Cooling duri...
Development of pollen cells as well as the fate of tapetal cells were studied by the glycol methacrylate semithin method for light microscopy. Sections including artificially produced images of pollen...
Anther length, anther width, and number of engorged pollens were reported to have a relationship to cooling injury of rice. The effects of nitrogen application on anther size and number of pollens wer...
Four intraspecific hybrids of Nelumbo nucifera, 3 interspecific hybrids from N. nucifera and N. lutea, 69 N. nucifera and 1 N. lutea cultivars were used for the identification of parent-offspring rela...
A new labor-saving method for preparing pollen suspension was developed for spray pollination of kiwifruit. Fresh anthers were dried on paper for anthesis. The dried anthers were directly suspended in...
Random mating has been used successfully to break linkages in cross-pollinated crops. In self-pollinated crops, however, the requirements for cross-pollination can markedly influence the feasibility o...
This paper proposes a method to unify the defi nition of the main pollen season based on statistical analysis. For this, an aerobiological study was carried out in Porto region (Portugal), from 2003-2...
Common ragweed (Ambrosia artemisiifolia L.) is an invasive weed of fi eld crops and human-disturbed habitats in Europe. As well as in its natural range (North America), common ragweed is a threat to h...
The present study shows the results of monitoring the atmospheric pollen in the atmosphere of an area of natural vegetation, the Hornachuelos Natural Park, Cordoba,southern Spain, during a six years (...
Catharanthus roseus G. Don. (CR) or periwinkle plants are widely grown/ cultivated as garden plants in the tropics and subtropics. In spite of its predominantly entomophilous nature, CR pollen had bee...

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