Naoki Irie

Animals have expanded the evolutionary legacy of unicellular ancestors in blood cells

Yosuke Nagahata, Yuji Nishimura, Ryota Kaitani, Jason Cheok Kuan Leong et autres

Blood cells are common and unique to animals, enabling them to address critical challenges of defense and transport. Thus, their evolution represents a defining innovation in metazoan multicellular life. However, their evolutionary trajectory about how blood cells emerged and diversified throughout animal …

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Internalized Evolutionary Inertia on Body Plan Evolution

Wenxin Zeng, Naoki Irie

Despite the phenotypic diversity of animal species, the basic anatomical features, or body plan, of each animal phylum have been strictly conserved since their initial establishment in the early Cambrian. While this remarkable conservation could be explained by the conservation of the …

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Toward mechanisms underlying the developmental hourglass: evolvability and phylotypic conservation

Yui Uchida, Naoki Irie

Understanding the general relationship between animal ontogeny and phylogeny remains a long-standing issue in evolutionary developmental biology. Historically, observation of these two phenomena, which involve increasing complexity, led to a series of hypotheses culminating in Haeckel’s recapitulation theory in the 1860s. These …

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Implications From the Analogous Relationship Between Evolutionary and Learning Processes

Jason Cheok Kuan Leong, Masaaki Imaizumi, Hideki Innan, Naoki Irie

Organismal evolution is a process of discovering better-fitting phenotypes through trial and error across generations. This iterative process resembles learning processes, an analogy recognized since the 1950s. Recognizing this parallel suggests that evolutionary biology and machine learning can mutually benefit from each …

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On the Maxillofacial Development of Mice, Mus musculus

Hiroki Higashiyama, Shunya Kuroda, Akiyasu Iwase, Naoki Irie et autres

The maxillofacial region is one of the most complex areas in the vertebrate body plan. The homology of the upper jaw bones remain controversial, both between mammals and nonmammalian amniotes and among humans and other mammals, leading to various hypotheses on how …

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Author response for "On the Maxillofacial Development of Mice, Mus musculus"

Hiroki Higashiyama, Shunya Kuroda, Akiyasu Iwase, Naoki Irie et autres

Maternal immune activation does not affect maternal microchimeric cells

Alexandria Borges, Naoki Irie

We are naturally chimeras. Apart from our own cells originating from the fertilized egg, placental mammals receive small numbers of maternal cells called maternal microchimerism (MMc) that persist throughout one's whole life. Not only are varying frequencies of MMc cells reported in …

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Deciphering the origin of developmental stability: The role of intracellular expression variability in evolutionary conservation

Yui Uchida, Masato Tsutsumi, Shunsuke Ichii, Naoki Irie et autres

Progress in evolutionary developmental biology (evo-devo) has deepened our understanding of how intrinsic properties of embryogenesis, along with natural selection and population genetics, shape phenotypic diversity. A focal point of recent empirical and theoretical research is the idea that highly developmentally stable …

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Hagfish genome elucidates vertebrate whole-genome duplication events and their evolutionary consequences

Daqi Yu, Yandong Ren, Masahiro Uesaka, Alan J. S. Beavan et autres

Polyploidy or whole-genome duplication (WGD) is a major event that drastically reshapes genome architecture and is often assumed to be causally associated with organismal innovations and radiations. The 2R hypothesis suggests that two WGD events (1R and 2R) occurred during early vertebrate …

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Hagfish genome illuminates vertebrate whole genome duplications and their evolutionary consequences

Juan Pascual‐Anaya, Daqi Yu, Yandong Ren, Masahiro Uesaka et autres

Abstract Whole genome duplications (WGDs) are major events that drastically reshape genome architecture and are causally associated with organismal innovations and radiations1. The 2R Hypothesis suggests that two WGD events (1R and 2R) occurred during early vertebrate evolution2,3. However, the veracity and …

es, cn, jp, gb, no, it, us (code pays fourni par la source)

Hagfish genome illuminates vertebrate whole genome duplications and their evolutionary consequences

Daqi Yu, Yandong Ren, Masahiro Uesaka, Alan J. S. Beavan et autres

Whole genome duplications (WGDs) are major events that drastically reshape genome architecture and are causally associated with organismal innovations and radiations 1 . The 2R Hypothesis suggests that two WGD events (1R and 2R) occurred during early vertebrate evolution 2, 3 . …

cn, kz, jp, gb, no, it, es, us (code pays fourni par la source)

Hox Genes in Echinoderms

Akihito Omori, Naoki Irie

Echinoderms are characterized by their pentameral adult body, which develops from bilateral larvae. Although the adult pentameral body is derived from the bilateral ancestor, the evolutionary process of forming the pentameral body is still obscure. Hox genes are involved in the patterning …