Mitotic karyotype of the tropical freshwater crayfish Procambarus (Austrocambarus) llamasi (Decapoda: Cambaridae)

Indy, Jeane Rimber; Arias‐Rodríguez, Lenin; Páramo-Delgadillo, Salomón; Vidal, Ulises Hernández; Álvarez‐González, Carlos Alfonso; Contreras-Sánchez, Wilfrido Miguel

doi:10.15517/rbt.v58i2.5236

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…Karyotypic analysis of decapod crustaceans has revealed that their chromosomes are relatively small and numerous 46 . All previous karyotyping studies in decapod crustaceans have not been successful in identifying sex chromosomes; these studies have covered a variety of decapod species, including penaeid shrimps 47 , Cambaridae crayfish 48 , Portunidae crabs 49 , and even the freshwater prawns M . siwalikensis 50 and M .…”

Section: Discussionmentioning

confidence: 99%

Production of WW males lacking the masculine Z chromosome and mining the Macrobrachium rosenbergii genome for sex-chromosomes

Levy

Rosen²,

Manor

et al. 2019

Sci Rep

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The cultivation of monosex populations is common in animal husbandry. However, preselecting the desired gender remains a major biotechnological and ethical challenge. To achieve an efficient biotechnology for all-female aquaculture in the economically important prawn ( Macrobrachium rosenbergii ), we achieved – for the first time – WW males using androgenic gland cells transplantation which caused full sex-reversal of WW females to functional males. Crossing the WW males with WW females yielded all-female progeny lacking the Z chromosome. We now have the ability to manipulate – by non-genomic means – all possible genotype combinations (ZZ, WZ and WW) to retain either male or female phenotypes and hence to produce monosex populations of either gender. This calls for a study of the genomic basis underlying this striking sexual plasticity, questioning the content of the W and Z chromosomes. Here, we report on the sequencing of a high-quality genome exhibiting distinguishable paternal and maternal sequences. This assembly covers ~ 87.5% of the genome and yielded a remarkable N50 value of ~ 20 × 10 6 bp. Genomic sex markers were used to initiate the identification and validation of parts of the W and Z chromosomes for the first time in arthropods.

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Section: Discussionmentioning

confidence: 99%

Production of WW males lacking the masculine Z chromosome and mining the Macrobrachium rosenbergii genome for sex-chromosomes

Levy

Rosen²,

Manor

et al. 2019

Sci Rep

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“…Specimens from different developmental stages, such as embryo, nauplius, other larvae and adult, and various tissues including testes, antennal gland, mid-gut, regenerated limbs of branchia, were used for chromosomal analysis; however, somatic metaphase is more appropriate for analysis and obtaining chromosomal metaphases from embryos and larvae is helpful for early detection of the results of chromosome set manipulation in marine shrimps (Xiang et al, 1994). Research done by Indy et al (2009) on mitotic karyotype of the tropical crayfish, Procambarus ilamasi, identified that this crayfish had 98-120 numbers of chromosome with the mode of 2n equal to 120 chromosomes. According to Murofushi and Deguchi (1990), changes in chromosome numbers observed in the Decapoda arise from polyploidization events.…”

Section: Studies On the Chromosome Of Shrimps Speciesmentioning

confidence: 99%

“…Research done by Indy et al . (2009) on mitotic karyotype of the tropical crayfish, Procambarus ilamasi, identified that this crayfish had 98–120 numbers of chromosome with the mode of 2n equal to 120 chromosomes. According to Murofushi and Deguchi (1990), changes in chromosome numbers observed in the Decapoda arise from polyploidization events.…”

Section: Studies On the Chromosome Of Shrimps Speciesmentioning

confidence: 99%

Triploid induction in penaeid shrimps aquaculture: a review

Manan

Ikhwanuddin

2020

Reviews in Aquaculture

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The application of biotechnology in marine shrimp especially in penaeid shrimps aquaculture is increasing in demand. Researcher and scientist consents that application of biotechnology helps improve the shrimp quality and consequently increase the aquaculture shrimp productions. The monosex culture becomes one of the focuses nowadays as the techniques can help increasing the aquaculture yield and obviously increases the aquaculture production. The application of triploidy in penaeid shrimp helps to increase the shrimp size, faster the shrimp growth and also recognized as one of the successful techniques for monosex culture as well as induction of polyploidy, gynogenesis and hormones induces. Triploidy technique is also beneficial to be applied in the shrimp aquaculture for the production purposes. This review paper focuses on the triploid induction in penaeid shrimps, the suitable method to be applied, and also the overview of the triploidy induction from others previous study. Hopefully, this review paper can be the benchmark for the application of triploidy technique in shrimp aquaculture industry and help promoting the shrimp aquaculture shrimp productions in the future.

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“…In Mexico, the biology of Procambarus has been more studied than the biology of other Cambarids because of its diversity and potential use in aquaculture (Indy et al, 2010). These studies include fecundity, egg development and, growth of juvenile crayfish Procambarus (Austrocambarus) llamasi under laboratory conditions, the effect of density and sex ratio on gonad development and spawning and the growth of juvenile fed different farm and aquaculture commercial foods (Rodriguez-Serna, et al, 2000;Rodriguez-Serna et al, 2002;Carmona et al, 2004;Rodriguez-Serna et al, 2010;Carmona-Osalde et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

FIRST RECORD OF EPIBIONT Sigara sp. (Corixidae) IN CRAYFISH Procambarus (Austrocambarus) llamasi FROM SOUTHEASTERN MEXICO

Gómez

Valenzuela-Cordova

Cruz

et al. 2021

Trop Subtrop Agroecosyst

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<pre>Background. In Mexico, the biology of Procambarus has been more studied than other cambarid species due to its diversity and potential use in aquaculture. Fecundity, egg development, and growth under laboratory conditions have been evaluated of the Procambarus (Austrocambarus) llamasi. The effect of density and sex ratio on the development and spawning of gonads and growth of juveniles fed different commercial agricultural and aquaculture feeds has also been studied. There are no records of epibionts infesting this crayfish. The primary objective of this study is to determine the infestation and epibiont identification rates of the Corixidae family and the damage caused to the crayfish. Methodology. To determine infestation indexes were calculated: the mean intensity (IM) is the average parasite species in infected organisms (MI = n. Total parasites / n. Infected hosts); abundance (AB) is the average number of parasites per host examined (AB = total number of parasites / n. hosts examined), and prevalence (P) indicates the percentage of organisms parasitized by a species of parasites (P = n .infested hosts / n. hosts examined x 100). Results. Of the shrimp analyzed, 76 were infested with 2655 aquatic insect eggs corresponding to 34.93 intensity; 18.18 abundance, and 52.05% prevalence. As far as crayfish sex, infestation occurred in 39% (n=30) of females and 61% (n=46) of males. The aquatic insect in this study belongs to the genus Sigara sp., being the only species registered in the crayfish. Implications. When the parasite egg settles near the crab eye region, it is likely to cause visual problems or partial blindness; on the other hand, it could cause a deterioration in the health of the populations of these crabs. Conclusion. The eggs located on the cuticular surface of the cephalothorax of Procambarus (Austrocambarus) llamasi correspond to insect the genus Sigara sp. Half of the studied population of the crayfish is infested by this epibiont. According to the results obtained it was determined that the eggs on the shrimp’s cuticular surface cause cuticle damage due to cementation on its shell. Eggs can also cause esthetic damage affecting marketing for human consumption and make shrimp overweight due to the egg mass. </pre>

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Mitotic karyotype of the tropical freshwater crayfish Procambarus (Austrocambarus) llamasi (Decapoda: Cambaridae)

Cited by 6 publications

References 26 publications

Production of WW males lacking the masculine Z chromosome and mining the Macrobrachium rosenbergii genome for sex-chromosomes

Production of WW males lacking the masculine Z chromosome and mining the Macrobrachium rosenbergii genome for sex-chromosomes

Triploid induction in penaeid shrimps aquaculture: a review

FIRST RECORD OF EPIBIONT Sigara sp. (Corixidae) IN CRAYFISH Procambarus (Austrocambarus) llamasi FROM SOUTHEASTERN MEXICO

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