摘要
达尔文认为,所有的生物都在进化。问题是如何进化?生物进化是否有一个普遍的模式或趋势?这些问题很少有人问到,也几乎没有人能够回答。在这种情况下,对许多人来说,进化是使人沮丧而又充满神秘的议题。在调查了大多数动植物的繁殖模式后,我们认为,所有(至少是大多数)生物的生殖进化都显示了类似的趋势,即子代发育管控(ODC)。子代发育管控在两个方面对生物的谱系延续有利:一是增强了子代幼体的物理保护,另一个是确保了子代幼体的营养供应。这种模式使动物和植物中生殖器官的起源和进化变得合理和易懂。我们的数据显示,这种模式在生物(包括植物和动物)中普遍存在,不过我们欢迎未来研究者找出例外。我们希望这一普遍规律的发现将有助于构建动植物的进化框架,并使它们的进化易于掌握。
All organisms evolve,Darwin stated.But,how do they evolve?Is there a general pattern or trend in the evolution of organisms?These questions are rarely asked,and more rarely answered.Lack of answers to these question makes evolution dejecting and elusive to many.After surveying sexual reproduction in most plants and animals,we demonstrate that sexual reproductions,at least in most organisms,share a similar trend,namely,Offspring Development Conditioning(ODC).ODC benefits the continuation of the phylogenies in two ways:one is reinforcing physical protection of offsprings,the other is securing nutrition supply for offsprings.The trend makes the origin and evolution of reproductive organs in plants and animals rational and easy to understand.As far as we know,this pattern seems to be universal among plants and animals.We encourage and invite more colleagues to join us figuring out the applicable limit of this trend.We hope the revealing of this trend will be helpful for establishing an evolutionary framework for sexually reproducing animals and plants,and making their evolution easy to grasp.
作者
傅强
刘建妮
王鑫
FU Qiang;LIU Jianni;WANG Xin(State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Palaeoenvironment,Chinese Academy of Sciences,Nanjing 210008,China;Early Life Institute,State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University,Xi′an 710069,China)
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第1期163-172,共10页
Journal of Northwest University（Natural Science Edition）
基金
中国科学院战略性先导科技专项(B类)(XDB26000000)
国家基础研究计划(973计划2012CB821901)
国家自然科学基金资助项目(41688103,91514302,41572046)。
关键词
生殖
进化
卵生
卵胎生
胎生
动物
植物
被子植物
子代发育管控
sexual reproduction
evolution
ovulipary
ovovivipary
vivipary
animals
plants
angiosperms
ODC
