Sexual Systems in Shrimps (Infraorder Caridea Dana, 1852), with Special Reference to the Historical Origin and Adaptive Value of Protandric Simultaneous Hermaphroditism

Baeza, Juán Antonio

doi:10.1007/978-3-319-94139-4_10

Cited by 7 publications

(2 citation statements)

References 106 publications

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“…In contrast, the molecular mechanisms activated by the ingestion of diatoms in young post-larvae correspond to those previously identified [ 27 ] and include: (i) the activation of a ferroptotic PCD involving the whole androgenic gland, (ii) the consequent apoptotic death of the testes tissues, and (iii) the interruption of the production of insulin-like hormone (IAG switch) leading to the development of female sex. This demonstrates that molecular approaches may represent a valuable alternative to traditional bioassays, providing insights into the understanding of the cellular machineries underlying sex reversal [ 41 ]. Such molecular approaches revealed important cellular strategies of PCD, whose impairment may have pathologic consequences and/or may lead to compromised embryogenesis [ 42 , 43 ], neurodegenerative diseases, or even the development of cancer.…”

Section: Discussionmentioning

confidence: 99%

Molecular Approaches Detect Early Signals of Programmed Cell Death in Hippolyte inermis Leach

Glaviano,

Esposito,

Somma

et al. 2024

CIMB

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The protandric shrimp Hippolyte inermis is the only known marine invertebrate whose sex determination is strongly influenced by the composition of its food. In H. inermis, a sex reversal is triggered by the ingestion of diatoms of the genus Cocconeis associated with leaves of the seagrass Posidonia oceanica. These diatoms contain compounds that promote programmed cell death (PCD) in H. inermis and also in human cancer cells. Transcriptomic analyses suggested that ferroptosis is the primary trigger of the shrimp’s sex reversal, leading to the rapid destruction of the androgen gland (AG) followed by a chain of apoptotic events transforming the testes into ovaries. Here, we propose a molecular approach to detect the effects of compounds stimulating the PCD. An RNA extraction method, suitable for young shrimp post-larvae (five days after metamorphosis; PL5 stage), was established. In addition, six genes involved in apoptosis, four involved in ferroptosis, and seven involved in the AG switch were mined from the transcriptome, and their expression levels were followed using real-time qPCR in PL5 fed on Cocconeis spp., compared to PL5 fed on a basic control feed. Our molecular approach, which detected early signals of sex reversal, represents a powerful instrument for investigating physiological progression and patterns of PCD in marine invertebrates. It exemplifies the physiological changes that may start a few days after the settlement of post-larvae and determine the life destiny of an individual.

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Section: Discussionmentioning

confidence: 99%

Molecular Approaches Detect Early Signals of Programmed Cell Death in Hippolyte inermis Leach

Glaviano,

Esposito,

Somma

et al. 2024

CIMB

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“…All shrimp carapace lengths were measured in millimetres from the post-orbital angle to the posterior margin of the carapace (pocl, mm). Due to protandric hermaphroditism reported in many species of Lysmata (see Baeza, 2018), individuals were classified solely as ovigerous (ov.) or non-ovigerous (non-ov.).…”

Section: Methodsmentioning

confidence: 99%

Refining southwestern Atlantic peppermint shrimp biodiversity: description of a new species ofLysmata(Decapoda: Lysmatidae) using an integrative systematic approach

et al. 2023

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Currently, 14 of the 50 species of Lysmata are known to possess a long accessory branch with more than two articles. Historically, Lysmata intermedia and Lysmata moorei were the only two ‘long-branch’ species inhabiting the southwestern Atlantic. Here we describe, based on morphological, molecular and colour pattern data, a new species of Lysmata possessing a long accessory branch from Pernambuco, northeastern Brazil. Our maximum-likelihood analysis recovered Lysmata elisa sp. n. as a sister species to Lysmata jundalini. Both species are closely related to Lysmata holthuisi and L. intermedia. The four aforementioned species comprise the L. intermedia species complex. The new species may be morphologically distinguished from the other closely related species by different sets of characters, which include details of the dorsolateral antennular flagellum, armature of ischium of the second pair of pereiopods, intraorbital process shape and relative proportions of pereiopods. Our results reinforce the importance of refining biodiversity data through the application of integrative taxonomic approaches to expand the knowledge of local and global biodiversity. The biodiversity of Lysmata deserves special attention, as they are intensively exploited in the aquarium trade.

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Sexual Systems

Bauer

2023

Fish &Amp; Fisheries Series

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Sexual Systems in Shrimps (Infraorder Caridea Dana, 1852), with Special Reference to the Historical Origin and Adaptive Value of Protandric Simultaneous Hermaphroditism

Cited by 7 publications

References 106 publications

Molecular Approaches Detect Early Signals of Programmed Cell Death in Hippolyte inermis Leach

Molecular Approaches Detect Early Signals of Programmed Cell Death in Hippolyte inermis Leach

Refining southwestern Atlantic peppermint shrimp biodiversity: description of a new species ofLysmata(Decapoda: Lysmatidae) using an integrative systematic approach

Sexual Systems

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