Crustaceans

VanHook, Annalisa M.; Patel, Nipam H.

doi:10.1016/j.cub.2008.05.021

Cited by 17 publications

(7 citation statements)

References 4 publications

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“…Among the Pancrustacea, (crustaceans + insects - Regier et al 2005), the hexapod insects are at an extreme in terms of appendage modification, having lost limbs in the posterior trunk and forming limbs on only three trunk segments. At another extreme are the branchipod crustaceans with homonomous trunk segments, all bearing limbs, a state that is believed to resemble the trunk morphology of the common ancestor of insects and crustaceans (Regier et al 2005; Vanhook and Patel, 2008; Budd and Telford, 2009). It has been proposed that the extreme modification of limb morphology seen in the insect lineage was accomplished in part by evolutionary changes in the expression patterns and functions of the posterior trunk Hox genes Ultrabithorax (Ubx) and abdominal-A (abd-A) (reviewed in Hughes and Kaufman, 2002b; Carroll et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Silencing of an abdominal Hox gene during early development is correlated with limb development in a crustacean trunk

Hsia

Paré

Hannon

et al. 2010

Evolution and Development

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We tested whetherArtemia abd-A could repress limbs in Drosophila embryos, and found that although abd-A transcripts were produced, ABD-A protein was not. Similarly, developing Artemiaepidermal cells showed expression of abd-A transcripts without accumulation of ABD-A protein. This finding in Artemia reveals a new variation in Hox gene function that is associated with morphological evolution. In this case, a HOX protein expression pattern is completely absent during early development, although the HOX protein is expressed at later stages in the central nervous system in a "homeotic-like" pattern. The combination of an absence of ABD-A protein expression in the Artemia limb primordia and the weak repressive function of Artemia UBX protein on the limb promoting gene Dll are likely to be two reasons why homonomous limbs develop throughout the entire Artemia trunk.

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Section: Introductionmentioning

confidence: 99%

Silencing of an abdominal Hox gene during early development is correlated with limb development in a crustacean trunk

Hsia

Paré

Hannon

et al. 2010

Evolution and Development

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Section: Mycobacteriosis In Crustaceansmentioning

confidence: 99%

“…Crustaceans belong to the phylum Arthropoda, which is subdivided into four major groups: crustaceans, insects, myriapods, and chelicerates [ 56 ]. Crustaceans are considered an important food source worldwide and a few species, such as shrimp, crab and lobster, have become particularly economically important, with some harvested from wild stocks and others being farmed [ 56 ]. Crustaceans have a long evolutionary history and remarkable adaptability to different habitats; however, they are not as well studied as their terrestrial arthropod relatives; nevertheless, our knowledge of their behaviour, development physiology and diversity is growing continuously [ 56 ].…”

Section: Mycobacteriosis In Crustaceansmentioning

confidence: 99%

Mycobacteriosis in Aquatic Invertebrates: A Review of Its Emergence

2020

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Mycobacteriosis is a chronic bacterial disease reported in aquatic and terrestrial animals, including humans. The disease affects a wide range of cultured and wild organisms worldwide. Mycobacteriosis is well-known in aquatic vertebrates (e.g., finfish, marine mammals), while in the last few years, reports of its presence in aquatic invertebrates have been on the rise, for both freshwater and marine species. The number of cases is likely to increase as a result of increased awareness, surveillance and availability of diagnostic methods. Domestication of wild aquatic species and the intensification of modern aquaculture are also leading to an increase in the number of reported cases. Moreover, climate changes are affecting fresh and marine aquatic ecosystems. The increasing reports of mycobacteriosis in aquatic invertebrates may also be influenced by global climate warming, which could contribute to the microbes’ development and survival rates, pathogen transmission and host susceptibility. Several species of the genus Mycobacterium have been diagnosed in aquatic invertebrates; a few of them are significant due to their wide host spectrum, economic impact in aquaculture, and zoonotic potential. The impact of mycobacteriosis in aquatic invertebrates is probably underestimated, and there is currently no effective treatment other than facility disinfection. In this review, we provide an overview of the diversity of mycobacterial infections reported in molluscs, crustaceans, cnidarians, echinoderms and sponges. We highlight important issues relating to its pathological manifestation, diagnosis and zoonotic considerations.

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“…With about 68,000 extant species of crustaceans describedand still more to be discovered-these predominantly aquatic invertebrates form a large and very diverse arthropod taxon (4)(5)(6). As predators, scavengers, or filter feeders, they take important positions within the aquatic ecosystems at various levels of the food web.…”

Section: Introductionmentioning

confidence: 99%

A Crab Is Not a Fish: Unique Aspects of the Crustacean Endocrine System and Considerations for Endocrine Toxicology

2021

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Crustaceans—and arthropods in general—exhibit many unique aspects to their physiology. These include the requirement to moult (ecdysis) in order to grow and reproduce, the ability to change color, and multiple strategies for sexual differentiation. Accordingly, the endocrine regulation of these processes involves hormones, receptors, and enzymes that differ from those utilized by vertebrates and other non-arthropod invertebrates. As a result, environmental chemicals known to disrupt endocrine processes in vertebrates are often not endocrine disruptors in crustaceans; while, chemicals that disrupt endocrine processes in crustaceans are often not endocrine disruptors in vertebrates. In this review, we present an overview of the evolution of the endocrine system of crustaceans, highlight endocrine endpoints known to be a target of disruption by chemicals, and identify other components of endocrine signaling that may prove to be targets of disruption. This review highlights that crustaceans need to be evaluated for endocrine disruption with consideration of their unique endocrine system and not with consideration of the endocrine system of vertebrates.

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Crustaceans

Cited by 17 publications

References 4 publications

Silencing of an abdominal Hox gene during early development is correlated with limb development in a crustacean trunk

Silencing of an abdominal Hox gene during early development is correlated with limb development in a crustacean trunk

Mycobacteriosis in Aquatic Invertebrates: A Review of Its Emergence

A Crab Is Not a Fish: Unique Aspects of the Crustacean Endocrine System and Considerations for Endocrine Toxicology

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