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《遗传》2005,27(2):342-342
“2005《遗传学报》《遗传》编委扩大会议”于2005年3月23日在北京召开。李家洋院士、盖钧镒院士、沈岩院士、两刊编委、部分审稿专家以及部分兄弟期刊编辑部负责人等共60人参加了会议。会议由薛勇彪主编主持,编辑室主任李绍武汇报工作:2004 年,《遗传学报》发表论文 214 篇,发稿数量比上年增加12%;《遗传》发稿201 篇,发稿数量比上年增加 13%。据科技部信息所“2004 版中国科技期刊引证报告”的统计结果:《遗传学报》总被引频次由983上升到1262,上升28.4%。影响因子由0.888上升为0.894,在生物学期刊中排名第4位。《遗传》总被引频次由569上… 相似文献
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2008年12月25日,“中国科学院-云南省人民政府西南生物多样性实验室”可行性研究报告（以下称“可研报告”）专家评审会在昆明召开。会议由云南省发展和改革委员会和中国科学院计财局共同主持,邀请了由陈晓亚院士、张敖罗院长等来自中国科学院和云南省的数十位专家组成评审专家组。 相似文献
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The pollen donor and pollinator attractor hypotheses are explanations for the functions of the male flowers of andromonoecious plants. We tested these two hypotheses in the andromonoecious shrub Capparis spinosa L. （Capparaceae） and confirmed that pollen production and cumulative volume and sugar concentration of nectar do not differ between male and perfect flowers. However, male flowers produced larger anthers, larger pollen grains and smaller ovaries than perfect flowers. Observations on pollinators indicated that two major pollinators （Xylocopa valga Gerst and Proxylocopa sinensis Wu） did not discriminate between flower morphs and that they transferred pollen grains a similar distance. However, there were more seeds per fruit following hand pollination with pollen from male flowers than from perfect flowers. Individuals of C. spinosa with a larger floral display （i.e. bearing more flowers） received more pollen grains on the stigma of perfect flowers. Female reproductive success probably is not limited by pollen. These results indicate that male flowers of C. spinosa save resources for female function and that they primarily serve to attract pollinators as pollen donors. 相似文献
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