In order to provide directionally genetically improved breeding materials of poplar by exploring the phenological traits genetic variation level and its develop- ment potential of Populus deltoides and the resource ev...In order to provide directionally genetically improved breeding materials of poplar by exploring the phenological traits genetic variation level and its develop- ment potential of Populus deltoides and the resource evaluation was carried out; 8 phenological phases in seedling period were observed and analyzed of 60 Populus deltoids clones introduced from America. The results showed that： （1） there was obvious difference in phonological character among clones, especially in leaf-spread- ing peak stage and the end term of leaf-falling stage, with the largest variation co- efficient of 14.97% and the minimum of 3.83% respectively. （2） Leaf-spreading peak stage scattered but the end term of leaf-falling stage concentrated the most. The phonological character in early stage of seedling growth was the main factor influ- encing the length of growing season. （3） By principal component analysis, pheno- logical phases were classified into 3 typical periods, including germination stage, leaf-spreading peak stage and leaf-falling stage. （4） Totaling 60 clones were classi- fied into 4 types by using clustering analysis in phenological time variables of clones.展开更多
Jingang No. 2 Heimeiren is a new early-maturing watermelon vadety in small to middle size with strong disease resistance bred with ZK09 as female par- ant and ZS05 as male parent. As to whole growth period, the spring...Jingang No. 2 Heimeiren is a new early-maturing watermelon vadety in small to middle size with strong disease resistance bred with ZK09 as female par- ant and ZS05 as male parent. As to whole growth period, the spring crop grows for 90-110 d, the autumn crop grows for 70-80 d, and the fruit development period is 27-29 d. The fruit is oblong with a fruit shape index of 1.5, the average single fruit weight is 3.18 kg, and the fruit surface is smooth in deep green color with dark green netted stripes. The fruit flesh is bright red, crisp, with a soluble solid content in the center of 11.5%. The fruit has a peel thickness of 1.0 cm with high storage tolerance, good appearance and good commodity. The variety is suitable for Guangxi, Guangdong and Halnan.展开更多
Background： The disclosure of the poplar genome strengthens its position as well-established model organism. Populus has been subject of several proteome studies, but up to date no comparative study was performed on ...Background： The disclosure of the poplar genome strengthens its position as well-established model organism. Populus has been subject of several proteome studies, but up to date no comparative study was performed on the extraction method of soluble proteins for this species. The extraction is the most critical step in two-dimensional gel electrophoresis and each extraction method has its advantages, disadvantages and limitations. Therefore protein extraction methods should be optimized for each tissue before starting an experimental setup. In prospect of future DIGE （Differential Gel electrophoresis） experiments for the investigation of the effects of cadmium and inoculation with plant growth promoting bacteria at the proteome level, the aim of this study was to optimize an extraction method for soluble proteins of poplar leaves and roots. Results： The acetone-phenol extraction method was found to be the most suited, rendering a high spot number and low background interference. During further optimization, several critical steps in the extraction method were revealed. Conclusion： Aiming to optimize the extraction of soluble leaf and root proteins of Populus deltoides × （trichocarpa× deltoides） compatible with DIGE analysis, a protocol rendering high reproducibility, low background interference and a high spot number was established, however no novel insights were acquired.展开更多
Few would deny the nobility of an animal which has played a significant role, historically, in the lives of humankind： the fabled unicorn, the Trojan Horse, and Pegasus, together with the Houyhnhnms of Jonathan Swift...Few would deny the nobility of an animal which has played a significant role, historically, in the lives of humankind： the fabled unicorn, the Trojan Horse, and Pegasus, together with the Houyhnhnms of Jonathan Swift are testaments to the nobility of horses. In a modern context, Seabiscuit, Black Beauty, Silver, steed of the iconic Lone Ranger, and Tir na nog, from Irish folk tale history, have maintained the tradition of nobility. High comedic elements such as TV＇s Mr. Ed, Aspercel, from The Horse in the Gray Flannel Suit （1968）, Ollie, of Laurel and Hardy fame, reincarnated as a horse, and Tir na nog, hiding in an elevator to avoid being apprehended by the law, help to complete the comedic portrait of equine nobility展开更多
基金Supported by National Special Funds for Forest Research in the Public Interest(201004004)~~
文摘In order to provide directionally genetically improved breeding materials of poplar by exploring the phenological traits genetic variation level and its develop- ment potential of Populus deltoides and the resource evaluation was carried out; 8 phenological phases in seedling period were observed and analyzed of 60 Populus deltoids clones introduced from America. The results showed that： （1） there was obvious difference in phonological character among clones, especially in leaf-spread- ing peak stage and the end term of leaf-falling stage, with the largest variation co- efficient of 14.97% and the minimum of 3.83% respectively. （2） Leaf-spreading peak stage scattered but the end term of leaf-falling stage concentrated the most. The phonological character in early stage of seedling growth was the main factor influ- encing the length of growing season. （3） By principal component analysis, pheno- logical phases were classified into 3 typical periods, including germination stage, leaf-spreading peak stage and leaf-falling stage. （4） Totaling 60 clones were classi- fied into 4 types by using clustering analysis in phenological time variables of clones.
文摘Jingang No. 2 Heimeiren is a new early-maturing watermelon vadety in small to middle size with strong disease resistance bred with ZK09 as female par- ant and ZS05 as male parent. As to whole growth period, the spring crop grows for 90-110 d, the autumn crop grows for 70-80 d, and the fruit development period is 27-29 d. The fruit is oblong with a fruit shape index of 1.5, the average single fruit weight is 3.18 kg, and the fruit surface is smooth in deep green color with dark green netted stripes. The fruit flesh is bright red, crisp, with a soluble solid content in the center of 11.5%. The fruit has a peel thickness of 1.0 cm with high storage tolerance, good appearance and good commodity. The variety is suitable for Guangxi, Guangdong and Halnan.
文摘Background： The disclosure of the poplar genome strengthens its position as well-established model organism. Populus has been subject of several proteome studies, but up to date no comparative study was performed on the extraction method of soluble proteins for this species. The extraction is the most critical step in two-dimensional gel electrophoresis and each extraction method has its advantages, disadvantages and limitations. Therefore protein extraction methods should be optimized for each tissue before starting an experimental setup. In prospect of future DIGE （Differential Gel electrophoresis） experiments for the investigation of the effects of cadmium and inoculation with plant growth promoting bacteria at the proteome level, the aim of this study was to optimize an extraction method for soluble proteins of poplar leaves and roots. Results： The acetone-phenol extraction method was found to be the most suited, rendering a high spot number and low background interference. During further optimization, several critical steps in the extraction method were revealed. Conclusion： Aiming to optimize the extraction of soluble leaf and root proteins of Populus deltoides × （trichocarpa× deltoides） compatible with DIGE analysis, a protocol rendering high reproducibility, low background interference and a high spot number was established, however no novel insights were acquired.
文摘Few would deny the nobility of an animal which has played a significant role, historically, in the lives of humankind： the fabled unicorn, the Trojan Horse, and Pegasus, together with the Houyhnhnms of Jonathan Swift are testaments to the nobility of horses. In a modern context, Seabiscuit, Black Beauty, Silver, steed of the iconic Lone Ranger, and Tir na nog, from Irish folk tale history, have maintained the tradition of nobility. High comedic elements such as TV＇s Mr. Ed, Aspercel, from The Horse in the Gray Flannel Suit （1968）, Ollie, of Laurel and Hardy fame, reincarnated as a horse, and Tir na nog, hiding in an elevator to avoid being apprehended by the law, help to complete the comedic portrait of equine nobility
