Multicellularity: Origins and Evolution by Karl J. Niklas, Stuart A. Newman, John T. Bonner

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By Karl J. Niklas, Stuart A. Newman, John T. Bonner

The evolution of multicellularity increases questions relating to genomic and developmental commonalities and discordances, selective benefits and drawbacks, actual determinants of improvement, and the origins of morphological novelties. It additionally represents a metamorphosis within the definition of individuality, simply because a brand new organism emerges from interactions between unmarried cells. This quantity considers those and different questions, with contributions that discover the origins and results of the evolution of multicellularity, addressing more than a few themes, organisms, and experimental protocols.

Each part makes a speciality of chosen issues or specific lineages that current an important perception or problem. The members think of the fossil list of the paleontological conditions during which animal multicellularity advanced; cooptation, recurrent styles, modularity, and believable pathways for multicellular evolution in vegetation; theoretical methods to the amoebozoa and fungi (cellular slime molds having lengthy supplied a strong version method for exploring the evolution of multicellularity), crops, and animals; genomic toolkits of metazoan multicellularity; and philosophical elements of the that means of individuality in mild of multicellular evolution.

ContributorsMaja Adamska, Argyris Arnellos, Juan A. Arias, Eugenio Azpeitia, Mariana Benítez, Adriano Bonforti, John Tyler Bonner, Peter L. Conlin, A. Keith Dunker, Salva Duran-Nebreda, Ana E. Escalante, Valeria Hernández-Hernández, Kunihiko Kaneko, Andrew H. Knoll, Stephan G. König, Daniel J. G. Lahr, Ottoline Leyser, Alan C. Love, Raul Montañez, Emilio Mora van Cauwelaert, Alvaro Moreno, Vidyanand Nanjundiah, Aurora M. Nedelcu, Stuart A. Newman, Karl J. Niklas, William C. Ratcliff, Iñaki Ruiz-Trillo, Ricard Solé

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Gargaud, P. Lopez-Garcia, & H. ), Origins and evolution of life: An astrobiological perspective (pp. 414–449). Cambridge, UK: Cambridge University Press. Javaux, E. , & Knoll, A. H. (in review). Micropaleontology of the Lower Mesoproterozoic Roper Group, Australia, and implications for early eukaryotic evolution. , Knoll, A. , & Walter, M. R. (2004). TEM evidence for eukaryotic diversity in mid-Proterozoic oceans. Geobiology, 2, 121–132. Jeong, H. , Yoo, Y. , Kim, J. , Seong, K. , Kang, N. , & Ki, T.

2011), which view sponges as both basal and paraphyletic, but it is far from obvious why the emergence of filter feeding by sponges would facilitate the patterns of morphological diversification actually observed in the fossil record. An alternative version of this hypothesis would ascribe protistan diversification to predation by tiny ancestral bilaterians—which differs from the “straight eukaryovory” hypothesis more in degree than in kind. A number of distinct feedbacks are possible between early metazoans and protists, and in all probability most were in play in Neoproterozoic oceans.

Section C. Biosciences, 41, 343–347. , Knoll, A. , Kaufman, A. , & Zhang, Y. (1997). Neoproterozoic fossils in Mesoproterozoic rocks? Chemostratigraphic resolution of a biostratigraphic conundrum from the North China Platform. Precambrian Research, 84, 197–220. Xiao, S. , Yuan, X. , & Knoll, A. H. (2002). Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, South China. Journal of Paleontology, 76, 347–376. Yin, L. (1997). Acanthomorphic acritarchs from Meso-Neoproterozoic shales of the Ruyang Group, Shanxi, China.

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