全部文献期刊会议图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Brian A. Atkinson
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (1), pp.139-147
摘要:Premise(#br)The mahogany family (Meliaceae) is an angiosperm lineage comprising many species that are important elements in tropical ecosystems, and is often used as a study system to understand the evolution of tropical rainforests. While divergence time studies have estima...
作者:Inés Álvarez , A. Bruno Agudo , Alberto Herrero ...
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (1), pp.116-125
摘要:Premise(#br)Gynomonoecy is an infrequent sexual system in angiosperms, although widely represented within the Asteraceae family. Currently, the hypothesis of two nuclear loci controling gynomonoecy is the most accepted. However, the genic interactions are still uncertain. An...
作者:Hazel Panique , Christina M. Caruso
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (1), pp.148-154
摘要:Premise(#br)Anthropogenic environmental change is causing pollinator populations to decline. These declines should intensify selection for floral traits that facilitate outcrossing by making plants more attractive to pollinators and/or for floral traits that facilitate selfi...
作者:Jindřich Chrtek , Patrik Mráz , Alexander Belyayev ...
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (1), pp.66-90
摘要:Premise(#br)The origin of allopolyploids is believed to shape their evolutionary potential, ecology, and geographical ranges. Morphologically distinct apomictic types sharing the same parental species belong to the most challenging groups of polyploids. We evaluated the origins a...
作者:Damian Popovic , David B. Lowry
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (2), pp.298-307
摘要:Premise(#br)Identifying the environmental factors responsible for natural selection across different habitats is crucial for understanding the process of local adaptation in plants. Despite its importance, few studies have successfully isolated the environmental factors driving l...
作者:Olle Pellmyr , Finn Kjellberg , Edward Allen Herre ...
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (1), pp.164-170
摘要:Premise(#br)Variation in pollen‐ovule ratios is thought to reflect the degree of pollen transfer efficiency—the more efficient the process, the fewer pollen grains needed. Few studies have directly examined the relationship between pollen‐ovule ratio and pollen transfer...
作者:Rachel MacTavish , Jill T. Anderson
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (2), pp.308-318
摘要:Premise(#br)Industrialization and human activities have elevated temperatures and caused novel precipitation patterns, altering soil moisture and nutrient availability. Predicting evolutionary responses to climate change requires information on the agents of selection that d...
作者:Chad T. Nihranz , William S. Walker , Steven J. Brown ...
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (2), pp.286-297
摘要:Premise(#br)Plant maternal effects on offspring phenotypes are well documented. However, little is known about how herbivory on maternal plants affects offspring fitness. Furthermore, while inbreeding is known to reduce plant reproductive output, previous studies have not ex...
作者:Brian V. Smithers , Meagan F. Oldfather , Michael J. Koontz ...
来源:[J].American Journal of Botany(IF 2.586), 2020, Vol.107 (2), pp.239-249
摘要:Premise(#br)Examining community turnover across climate gradients at multiple scales is vital to understanding biogeographic response to climate change. This approach is especially important for alpine plants in which the relative roles of topographic complexity and nonclima...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×