被子植物花的起源:假说和证据
Acta Botanica Boreali-Occidentalia Sinica（2004）
Abstract
达尔文的"令人讨厌之谜",即被子植物的起源和早期演化,一直是植物系统学研究领域的热点.被子植物区别于其它植物类群的一个显著特征就是花,因此,解决被子植物的起源之谜很大程度上取决于对被子植物花器官起源的研究.对被子植物花器官的详尽研究已经在形态、解剖、古植物、形态发生、分子等方面积累了大量的证据,植物学家基于这些证据为被子植物花器官的起源提出了各种各样的解释.综述了迄今为止被子植物花器官起源的主要学说流派,如:真花学说、假花学说、生殖叶学说、生殖茎节学说、生花植物学说、新假花学说、古草本学说和ANITA学说等.根据研究手段和获得证据的方式,作者将被子植物花器官起源研究划分为5个阶段,并简要阐述了各个阶段的代表学说和主要研究特点.
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Pretraining has recently greatly promoted the development of natural language processing (NLP)We show that M6 outperforms the baselines in multimodal downstream tasks, and the large M6 with 10 parameters can reach a better performanceWe propose a method called M6 that is able to process information of multiple modalities and perform both single-modal and cross-modal understanding and generationThe model is scaled to large model with 10 billion parameters with sophisticated deployment, and the 10 -parameter M6-large is the largest pretrained model in ChineseExperimental results show that our proposed M6 outperforms the baseline in a number of downstream tasks concerning both single modality and multiple modalities We will continue the pretraining of extremely large models by increasing data to explore the limit of its performanceUpload PDF to Generate Summary
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