Dimorphic life cycle through transverse division in burrowing hard coral Deltocyathoides orientalis.
Dimorphic life cycle through transverse division in burrowing hard coral Deltocyathoides orientalis.
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DOI：
10.1038/s41598-022-13347-2
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发表时间：
2022-06-07
影响因子：
4.6
通讯作者：
Tokuda Y
中科院分区：
文献类型：
--
作者：
Sentoku A;Shimizu K;Naka T;Tokuda Y
东方三角珊瑚（Deltocyathoides orientalis）是一种单生的石珊瑚，具有碗状的中肋珊瑚，在柔软的底质上具有穴居行为，能够适应底栖生活方式。在这里，我们描述了以前未知的方面，他们的生活史和无性繁殖模式的基础上形态和分子系统发育分析。结果表明：（1）D. orientalis通过横向分裂进行无性繁殖;（2）由圆柱形到鼓形花茎衍生的较小的碗状有肋花杯附着在坚硬的基质上，包括软基质上的贝壳碎片和砾石;（3）花杯仅在分裂后进行有性繁殖，并且发现花茎通过横向分裂重新生长并重复产生花杯。杯状珊瑚形态的花杯刚刚分裂后，可能会减少所需的时间骨骼形成，使动物群适应后，横向分裂。分裂后，D。东方红可以顺利地转变为穴居生活方式，有效地利用软基质环境，从而提高其存活率。因此，在花尾阶段的前景anthocyathus的形态形成被认为涉及克隆个体的增加以及适应在anthocyathus阶段的穴居自由生活模式。
The azooxanthellate solitary scleractinian Deltocyathoides orientalis (family Turbinoliidae), which has bowl-shaped costate corallites, exhibits burrowing behavior on soft substrates and can adapt to an infaunal mode of life. Here, we describe previously unknown aspects of their life history and asexual mode of reproduction based on morphological and molecular phylogenetic analyses. The findings reveal that (1) D. orientalis exhibits asexual reproduction by transverse division; (2) smaller bowl-shaped costate anthocyathus derived from cylindrical to tympanoid anthocaulus were attached to hard substrates, including shell fragments and gravels on soft substrates; and (3) anthocyathus only reproduce sexually after division, and anthocaulus was found to regrow and repeatedly produce anthocyathi through transverse division. The bowl-shaped corallum morphology of the anthocyathus just after division might reduce the time required for skeletal formation to enable infaunal adaption after transverse division. Immediately after division, D. orientalis can smoothly shift to a burrowing lifestyle that efficiently utilizes soft-substrate environments, thus increasing its survival rate. The morphological formation of prospective anthocyathus in the anthocaulus stage is consequently thought to involve an increase in clonal individuals as well as adaptations for a burrowing free-living mode of life in the anthocyathus stage.
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影响因子：
9.5
作者：
Katoh K;Rozewicki J;Yamada KD
通讯作者：
Yamada KD
影响因子：
4.6
作者：
Sentoku A;Tokuda Y;Ezaki Y
通讯作者：
Ezaki Y
DOI：
10.1073/pnas.0602444103
发表时间：
2006-06-13
影响因子：
11.1
作者：
Medina, Monica;Collins, Allen G.;Boore, Jeffrey L.
通讯作者：
Boore, Jeffrey L.
DOI：
10.1093/bioinformatics/btp348
发表时间：
2009-08-01
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Capella-Gutiérrez S;Silla-Martínez JM;Gabaldón T
通讯作者：
Gabaldón T
影响因子：
14.9
作者：
Kuraku S;Zmasek CM;Nishimura O;Katoh K
通讯作者：
Katoh K