Journal of experimental zoology. Part B, Molecular and developmental evolution最新文献_第10页

Nuchal organs in the trochophore of Siboglinum fiordicum (Annelida, Siboglinidae) 菲氏跳珠（环节动物门，跳珠科）柄柄中的Nuchal器官。

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-03-01 DOI: 10.1002/jez.b.23192

Elena Temereva, Nadezhda Rimskaya-Korsakova

{"title":"Nuchal organs in the trochophore of Siboglinum fiordicum (Annelida, Siboglinidae)","authors":"Elena Temereva, Nadezhda Rimskaya-Korsakova","doi":"10.1002/jez.b.23192","DOIUrl":"10.1002/jez.b.23192","url":null,"abstract":"Nuchal organs are epidermal sensory structures present in most annelids. Based on one of the interpretations, they serve in larval settlement. Siboglinids lack nuchal organs in adult and larval stages, however, larvae of some siboglinids inhabiting seeps and hydrothermal vents are capable of swimming up to 100 km away from their home hydrothermal field to colonize a new one. One question that remains is, what organ are siboglinid larvae using to search and locate suitable substrates? To determine if any nuchal organs are present in siboglinid larvae, we studied the head and sensory apparatus in successive larval stages in a frenulate, Siboglinum fiordicum (Webb, 1963), using transmission electron microscopy and immunocytochemistry. In the early trochophore stage, we found an unpaired dorsal organ lying proximal to the posterior prototroch. This organ consists of trochoblast- and “covering” cells. Trochoblasts exhibited serotonin-like immunoreactivity and likely correspond to ciliated supporting cells, where cilia and microvilli project into the olfactory chamber. The “covering” cells are characterized by the presence of large nuclei with numerous pores and thick processes that project into the olfactory chamber, forming the contacts with the trochoblast projections. We have shown for the first time the presence of a nuchal-like organ in annelids as early as the trochophore stage. The presence of this organ in siboglinid trochophores while they are still in the inside the female tube suggests that this structure might be associated with functions other than settlement, such as communication or initiation of the departure from her tube.","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":"340 5","pages":"366-376"},"PeriodicalIF":2.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9629390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of eyes, photoreceptors, and opsins in developmental stages of the arrow worm Spadella cephaloptera (Chaetognatha) 箭虫头翅Spadella cephaloptera发育阶段的眼睛、光感受器和视蛋白的特征

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-02-28 DOI: 10.1002/jez.b.23193

Tim Wollesen, Sonia V. Rodriguez Monje, Adam P. Oel, Detlev Arendt

{"title":"Characterization of eyes, photoreceptors, and opsins in developmental stages of the arrow worm Spadella cephaloptera (Chaetognatha)","authors":"Tim Wollesen, Sonia V. Rodriguez Monje, Adam P. Oel, Detlev Arendt","doi":"10.1002/jez.b.23193","DOIUrl":"10.1002/jez.b.23193","url":null,"abstract":"The phylogenetic position of chaetognaths, or arrow worms, has been debated for decades, however recently they have been grouped into the Gnathifera, a sister clade to all other Spiralia. Chaetognath photoreceptor cells are anatomically unique by exhibiting a highly modified cilium and are arranged differently in the eyes of the various species. Studies investigating eye development and underlying gene regulatory networks are so far missing. To gain insights into the development and the molecular toolkit of chaetognath photoreceptors and eyes a new transcriptome of the epibenthic species Spadella cephaloptera was searched for opsins. Our screen revealed two copies of xenopsin and a single copy of peropsin. Gene expression analyses demonstrated that only xenopsin1 is expressed in photoreceptor cells of the developing lateral eyes. Adults likewise exhibit two xenopsin1 + photoreceptor cells in each of their lateral eyes. Beyond that, a single cryptochrome gene was uncovered and found to be expressed in photoreceptor cells of the lateral developing eye. In addition, cryptochrome is also expressed in the cerebral ganglia in a region in which also peropsin expression was observed. This condition is reminiscent of a nonvisual photoreceptive zone in the apical nervous system of the annelid Platynereis dumerilii that performs circadian entrainment and melatonin release. Cryptochrome is also expressed in cells of the corona ciliata, an organ in the posterior dorsal head region, indicating a role in circadian entrainment. Our study highlights the importance of the Gnathifera for unraveling the evolution of photoreceptors and eyes in Spiralia and Bilateria.","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":"340 5","pages":"342-353"},"PeriodicalIF":2.2,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jez.b.23193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9985119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

In the Spotlight—Established Researcher 聚焦--知名研究人员。

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-02-15 DOI: 10.1002/jez.b.23191

Cliff Tabin

引用次数: 0

In the Spotlight—Established researcher 聚光灯下的知名研究员。

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-01-29 DOI: 10.1002/jez.b.23190

Marianne Bronner

引用次数: 0

JEZB special issue on animal gene regulatory network evolution JEZB动物基因调控网络进化特刊

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-01-08 DOI: 10.1002/jez.b.23186

Thomas M. Williams, Mark Rebeiz

引用次数: 0

Transcriptomic exploration of the Coleopteran wings reveals insight into the evolution of novel structures associated with the beetle elytron 对鞘翅类翅膀的转录组学研究揭示了与甲虫鞘翅相关的新结构的进化

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2023-01-08 DOI: 10.1002/jez.b.23188

David M. Linz, Yuichiro Hara, Kevin D. Deem, Shigehiro Kuraku, Shigeo Hayashi, Yoshinori Tomoyasu

{"title":"Transcriptomic exploration of the Coleopteran wings reveals insight into the evolution of novel structures associated with the beetle elytron","authors":"David M. Linz, Yuichiro Hara, Kevin D. Deem, Shigehiro Kuraku, Shigeo Hayashi, Yoshinori Tomoyasu","doi":"10.1002/jez.b.23188","DOIUrl":"10.1002/jez.b.23188","url":null,"abstract":"The acquisition of novel traits is central to organismal evolution, yet the molecular mechanisms underlying this process are elusive. The beetle forewings (elytra) are evolutionarily modified to serve as a protective shield, providing a unique opportunity to study these mechanisms. In the past, the orthologs of genes within the wing gene network from Drosophila studies served as the starting point when studying the evolution of elytra (candidate genes). Although effective, candidate gene lists are finite and only explore genes conserved across species. To go beyond candidate genes, we used RNA sequencing and explored the wing transcriptomes of two Coleopteran species, the red flour beetle (Tribolium castaneum) and the Japanese stag beetle (Dorcus hopei). Our analysis revealed sets of genes enriched in Tribolium elytra (57 genes) and genes unique to the hindwings, which possess more “typical” insect wing morphologies (29 genes). Over a third of the hindwing-enriched genes were “candidate genes” whose functions were previously analyzed in Tribolium, demonstrating the robustness of our sequencing. Although the overlap was limited, transcriptomic comparison between the beetle species found a common set of genes, including key wing genes, enriched in either elytra or hindwings. Our RNA interference analysis for elytron-enriched genes in Tribolium uncovered novel genes with roles in forming various aspects of morphology that are unique to elytra, such as pigmentation, hardening, sensory development, and vein formation. Our analyses deepen our understanding of how gene network evolution facilitated the emergence of the elytron, a unique structure critical to the evolutionary success of beetles.","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":"340 2","pages":"197-213"},"PeriodicalIF":2.2,"publicationDate":"2023-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/11/c8/JEZ-340-197.PMC10107685.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9320325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Sperm storage by females across the animal phyla: A survey on the occurrence and biomolecules involved in sperm storage 跨动物门的雌性精子储存:精子储存的发生和涉及的生物分子的调查

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2022-12-29 DOI: 10.1002/jez.b.23189

Goutham Shankar, Thumbala A. Gagan, Titus R. S. Kumari, Gopal K. Marathe

引用次数: 0

Evaluation of scale development and its regeneration potency in the desert killifish under laboratory conditions 实验室条件下荒漠鳉鱼鳞发育及其再生能力的评价

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2022-12-25 DOI: 10.1002/jez.b.23185

Mina Motamedi, Azad Teimori, Mohammad Reza Esmaeili, Hossein Mostafavi

{"title":"Evaluation of scale development and its regeneration potency in the desert killifish under laboratory conditions","authors":"Mina Motamedi, Azad Teimori, Mohammad Reza Esmaeili, Hossein Mostafavi","doi":"10.1002/jez.b.23185","DOIUrl":"10.1002/jez.b.23185","url":null,"abstract":"Scale development and its regeneration potency were evaluated in a desert killifish Aphaniops hormuzensis (family Aphaniidae) in laboratory conditions by using light and scanning electron microscopy. Scale development in A. hormuzensis took 156 days at room temperature. Four specific regions of scale formation were detected. The first scale development began 13 days post-hatching (dph) (total length [TL] = 8.5 mm) at the caudal peduncle region and is extended anteriorly 26 dph (TL = 13.6 mm) at the area below the dorsal fin. Scales began forming independently in the head region at 33 dph (TL = 21.7 mm), and in the abdominal region, began at 41 dph (TL = 25.8 mm). Additional points of scale origin were detected on the sides of the operculum or behind and below the eyes. Scale regeneration in the caudal peduncle started 6 days after removal (dar). In 16 dar, the microstructural features appeared and the growth circles, a wide and oblong focus (focus length = 0.6 ± 0.05 µm), and lepidonts were also formed. In 36 dar, the scale shape was gradually changed from circular to a polygon, and radii were distinguishable in the anterior field. The pattern of scale formation could be useful in enhancing the understanding of systematics and phylogeny, functional morphology, and habitat use. It could also be useful in helping to define the Larval/juvenile transition period.","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":"340 4","pages":"329-336"},"PeriodicalIF":2.2,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9682546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In the Spotlight—Established Researcher 聚光灯下的知名研究人员

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2022-12-22 DOI: 10.1002/jez.b.23187

Laura Nuño de la Rosa

引用次数: 0

Interacting effects of environmental enrichment across multiple generations on early life phenotypes in zebrafish 多代环境富集对斑马鱼早期表型的相互作用

IF 2.2 3区生物学

Journal of experimental zoology. Part B, Molecular and developmental evolution Pub Date : 2022-12-07 DOI: 10.1002/jez.b.23184

Michael R. Green, William T. Swaney

{"title":"Interacting effects of environmental enrichment across multiple generations on early life phenotypes in zebrafish","authors":"Michael R. Green, William T. Swaney","doi":"10.1002/jez.b.23184","DOIUrl":"10.1002/jez.b.23184","url":null,"abstract":"The environment plays an important role in an individual's development during early life, however, parents may also influence offspring development through so called “parental effects.” We examined the effects of environmental enrichment in zebrafish (Danio rerio) across two generations through the paternal lineage. Fathers and grandfathers were exposed to either standard or high levels of housing enrichment for 4-weeks during adulthood. First-generation (F1) and second-generation (F2) offspring were obtained from controlled breeding and tested as larvae for changes in morphology at hatching stage (72hpf), and in locomotor activity at larval stage (120hpf) in both generations. We found paternal experience of enrichment resulted in changes in trunk length of F1 offspring and changes in spine curvature and dorsal length of F2 offspring, while changes in snout morphology of F2 offspring seemed to be driven by whether grandpaternal and paternal experience of the environment was matched or not. We found that while paternal enrichment increased the frequency of spontaneous movement in F1 and F2 offspring, interacting effects of paternal and grandpaternal enrichment on movement distance were seen in F2 offspring, and that spontaneous movement and the distance that larvae swam are thus distinct phenotypes that were differentially affected by the experiences of previous paternal generations. Taken together, these findings suggest that the parental and grandparental environment influence zebrafish behavior and morphology. The nature of these effects and the design of this study mean that these phenotypes were likely the result of nongenetic transmission through the paternal germline.","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":"340 5","pages":"354-365"},"PeriodicalIF":2.2,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jez.b.23184","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9631982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1