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云南稻种冲腿的孕穗期耐冷性QTL分析 总被引：24，自引：6，他引：24
利用352 个探针分析了日本品种农林20和云南品种冲腿之间的限制性片段长度多态性（RFLP），从中筛选出157个在农林20和冲腿间显示多态性的探针，其中55个被用于其杂交后代（农林20/冲腿）的70个F3系统的孕穗期耐冷性数量性状位点（QTL）分析。结果初步显示出一些与水稻孕穗期耐冷性有关的QTL，它们主要分布在第1、3、4、5、6、7、8、10和第12染色体上。可能在第3和第7染色体上具有对孕穗期耐冷性作用较大的QTL。 相似文献
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Matsuyama H Unno T Komori S Takewaki T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(4):453-458
The present study was designed to explore the inhibitory mechanism by nitric oxide (NO) of the tachykininergic neuro-muscular transmissions in the hamster ileum. In the presence of guanethidine (1 μM), atropine (0.5 μM), nifedipine (0.1 μM) and apamin (100 nM), electrical field stimuli (EFS; 0.5 ms duration, 15 V) evoked non-adrenergic, non-cholinergic excitatory junction potentials (EJPs) in circular smooth muscle cells. The EJPs were markedly inhibited by the tachykinin NK1 receptor antagonists [D-Pro(4), D-Trp(7,9)]-SP(4-11) (3 μM). Both the NO synthase inhibitor N(G)-nitro-L-arginine methyl ester (L-NAME, 200 μM) and the soluble guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo-[4,3-a]quinoxalin-1-one (ODQ, 10 μM), did not affect on the resting membrane potentials, but enhanced the tachykininergic EJPs. In the presence of L-NAME (200 μM), exogenously applied NO (10 μM) and the membrane permeable analogue of guanosine 3',5'-cyclic monophosphate (cGMP), 8-bromoguanosine 3',5'-cyclic monophosphate (8-Br-cGMP, 3 mM), significantly inhibited the tachykininergic EJPs. Application of EFS (0.5 msec duration, 15 V) with trains of 20 pulses at 20 Hz increased amount of released substance P (SP). The release of SP was further increased by the treatment of L-NAME or ODQ, but markedly reduced by exogenously applied NO and 8-Br-cGMP. These results suggest that the endogenous NO may inhibit the tachykininergic neuro-muscular transmissions by the decrease of SP release from the tachykininergic neurons, possibly through a guanylate cyclase-cGMP-dependent mechanism in the hamster ileum. 相似文献
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Hirofumi Takeda Toshiyuki Iida Akira Okada Hayato Ootsuka Toshio Ohshita Eri Masutani Shigeru Katayama Hiroki Saeki 《Fisheries Science》2007,73(4):924-930
A feasibility study was carried out to determine whether water-soluble salmon meat could be manufactured by conjugating a
glycosyl unit using the Maillard reaction. Spawned out salmon meat was washed, mixed with alginate oligosaccharide (AO) and
sorbitol, lyophilized, and then heated at 60°C and 5–95% relative humidity (RH) to introduce AO (the mean degree of polymerization
was six) into the myofibrillar proteins through the Maillard reaction. The reaction progressed with an increase in the reaction
humidity and the amount of AO bound to the protein reached >150 μg/mg at RH 65 and 90%. However, the protein glycosylation
under high humidity impaired protein solubility and the meat protein became effectively water-soluble with the conjugation
with AO at reaction conditions of 60°C and RH 35%. The improved characteristics of the meat protein were highly stable at
room temperature. Further, the water-soluble protein can be prepared from the frozen salmon meat stored at −25°C for 60–90
days. These results indicate that protein glycosylation has strong potential for use with spawned out chum salmon. The suppression
of protein denaturation during processing is important to obtain the high water-soluble meat protein. 相似文献
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