WebSep 9, 2024 · Botryllid ascidians possess diverse biological abilities like whole-body regeneration (WBR), hibernation/aestivation, blastogenesis, metamorphosis, and natural chimerism. However, the absence of distinctive morphological features often makes identification problematic. WebStudies on Japanese Botryllid Ascidians. III. A New Species of the Genus Botryllus with a Vivid Colony Color from the Vicinity of Shimoda Yasunori Saito* and Naoko Nagasawa Shimoda Marine Research Center, University of Tsukuba, Shimoda, Shizuoka 415-0025, Japan ABSTRACT —The morphology and life history of a new species of the genus …
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WebFeb 18, 2024 · Botryllids are colonial ascidians widely studied for their potential invasiveness and as model organisms, however the morphological description and … Our aim was to develop a resource for collecting hundreds of orthologous loci across the botryllid ascidians using Anchored Hybrid Enrichment (AHE)69. The pre-existing genomic resources included an assembled genome of Botryllus schlosseri70, and two assembled transcriptomes: Botryllus schlosseri71, and Botrylloides … See more Samples were collected from 1995 to 2024 from both artificial and natural substrates (Table 1). The collection location, geographic … See more Taxa were also assigned to species by examination of morphological characters, when formalin preserved samples were available, using descriptions from the literature11,30–36,38,40,43–48,60–65. The 31 analyzed … See more We assigned samples to species by sequencing the mitochondrial cytochrome oxidase I (mtCOI) gene (Table 1). DNA was extracted using the Nucleospin Tissue Kit (Macherey … See more DNA for all samples in Table 1 was extracted using the E.Z.N.A DNA isolation kit (Omega BioTek), and an additional isopropanol … See more fear lead to anger
Temperature and salinity effects on growth, survival
WebApr 1, 2003 · In colonial ascidians of the family Botryllidae, when two colonies are brought into contact at their growing edges, a hemolytic rejection reaction occurs between allogeneic colonies. Morula cells, a type of hemocyte, are the major effector cells in … WebMay 1, 2003 · In these three botryllids, the occur-rence of colony specificity (allogeneic recognition) has been studied. In fact, their mechanisms of allogeneic recognition are considered to be different from each other because their observed manners of allogeneic rejection are different from each other ( Figs. 1 and 2; Saito et al., 1994 ). WebBotryllid ascidians, a widely dispersed group of colonial tunicates, exhibit an intricate modular life form, in which astogeny develops as weekly, highly synchronized growth/death cycles termed blastogenesis, abiding by a strictly regulated plan. In these organisms both astogeny and ontogeny form similar body structures. fear leads to hate quote