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大豆品种抗大豆食心虫性与其形态学和生物学因子关系的研究 被引量:16
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作者 赵爱莉 王陆玲 +1 位作者 王晓丽 王大伟 《吉林农业大学学报》 CAS CSCD 1994年第4期43-48,共6页
经连续9年分期分批对2659个栽培大豆品种进行了抗大豆食心虫性与其有关的形态学、生物学、化学因子关系试验研究,结果表明,品种抗虫性与株形(分枝、结荚习性、分枝与主茎角度、生长习性)、茸毛(茸毛色、长度、密度)、荚皮(... 经连续9年分期分批对2659个栽培大豆品种进行了抗大豆食心虫性与其有关的形态学、生物学、化学因子关系试验研究,结果表明,品种抗虫性与株形(分枝、结荚习性、分枝与主茎角度、生长习性)、茸毛(茸毛色、长度、密度)、荚皮(荚熟色、荚皮隔离层细胞)、子粒(脐色、粒大小)等形态因子;开花日数、结荚日数、生育日数等生物学因子;以及与子粒蛋白质、脂肪含量等化学因子均有不同程度相关。 展开更多
关键词 大豆 育种 品种 大豆食心虫 抗虫性 形态学因子
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Foregut duplication cysts:A report of two cases with emphasis on embryogenesis 被引量:5
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作者 Thaer Khoury Louis Rivera 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第1期130-134,共5页
Duplication cyst of the stomach with a pseudostratifie columnar ciliated epithelium is extremely rare.We de scribe two cases of these cysts,with emphasis on the immunophenotype and embryogenesis.The first patien was a... Duplication cyst of the stomach with a pseudostratifie columnar ciliated epithelium is extremely rare.We de scribe two cases of these cysts,with emphasis on the immunophenotype and embryogenesis.The first patien was a 29-year-old man who presented with crampin abdominal pain in his left lower quadrant.The secon patient was a 26-year-old woman who had a history over several years,of chronic epigastric abdominal pai radiating to her back.Both lesions were surgically re moved.They showed the same histomorphology.Th cysts were lined by a pseudostratified respiratory ep thelium with ciliated cells.The first cyst was connecte to the stomach,while the second cyst was not connect ed.Both cysts expressed thyroid transcription factor(TTF-1) and surfactant.In this report,we explore th possible embryogenesis of these lesions in the light o TTF-1 and surfactant expression. 展开更多
关键词 Duplication cyst STOMACH Thyroid transcription factor-1 SURFACTANT EMBRYOGENESIS
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Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the wellknown genus Zoothamnium(Ciliophora,Peritrichia) 被引量:1
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作者 李丽芳 马洪钢 AL-RASHEID Khaled A.S. 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第2期490-499,共10页
In this paper, we explore possible conflict between morphological and molecular interpretations of phylogenetic relationships within the well-known peritrichous genus Zoothamnium. On the basis of morphological evidenc... In this paper, we explore possible conflict between morphological and molecular interpretations of phylogenetic relationships within the well-known peritrichous genus Zoothamnium. On the basis of morphological evidence, for a long time this genus has been believed to be a well-defined monophyletic taxon. Nonetheless, Zoothamnium exhibits higher genetic diversity than the gross morphology of its species. Here, we used all available genetic information for the small subunit of ribosomal RNA (SSU rRNA) and internal transcribed spacer region (ITS1-5.8S-ITS2) for this genus to reconstruct phylogenies for four datasets (SSU rRNA, ITS1, ITS2, and ITS1-5.8S-ITS2) and a combined dataset (SSU rRNA+ITSI-5.8S- ITS2) using different phylogenetic methods and with consideration of the secondary structure of the genes. Confidence in phylogenetic tree selection was assessed with the approximately unbiased test. The molecular results showed both that Zoothamnium is more likely to be polyphyletic, and morphologically similar genera Zoothamnopsis and Myoschiston were always nested among Zoothamnium species. Accordingly, as with some other groups of ciliates, to understand more fully the correct phylogeny of Zoothamnium there remains a need for additional data from both morphological and molecular studies, covering additional Zoothamnium spp. and members of closely related genera (e.g. Zoothamnopsis, Myoschiston, and Epistylis). 展开更多
关键词 peritrichous ciliates Zoothamnium phylogenetic analyses MONOPHYLY POLYPHYLY
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