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Article

Different Chromosome Segregation Patterns Coexist in the Tetraploid Adriatic Sturgeon Acipenser naccarii

by
Stefano Dalle Palle
1,†,
Elisa Boscari
1,†,
Simone Giulio Bordignon
1,
Víctor Hugo Muñoz-Mora
2,
Giorgio Bertorelle
2 and
Leonardo Congiu
1,*
1
Department of Biology, University of Padova, Via Ugo Bassi 58b, 35121 Padova, Italy
2
Department of Life Sciences and Biotechnology, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Diversity 2022, 14(9), 745; https://doi.org/10.3390/d14090745
Submission received: 13 August 2022 / Revised: 30 August 2022 / Accepted: 7 September 2022 / Published: 10 September 2022
(This article belongs to the Special Issue Conservation Genetics of Sturgeons)

Abstract

The Adriatic sturgeon, Acipenser naccarii (Bonaparte, 1836), is a critically endangered tetraploid endemism of the Adriatic region; it has been targeted, over the last 20 years, by different conservation programs based on controlled reproduction of captive breeders followed by the release of their juvenile offspring; its preservation would greatly benefit from the correct and coordinated management of the residual genetic variability available in the different captive stocks. In this sense, the setup of an efficient parental allocation procedure would allow identifying familiar groups and establishing informed breeding plans, effectively preserving genetic variation. However, being the species tetraploid, the analyses often deal with complex genome architecture and a preliminary evaluation of allele segregation patterns at different chromosomes is necessary to assess whether the species can be considered a pure tetraploid, as previously observed at some loci, or if a more complex situation is present. Here we study the segregation at 14 microsatellites loci in 12 familiar groups. Results support in different families the tetrasomic segregation pattern at 11 markers and the disomic segregation at three markers. The Adriatic sturgeon thus shows a mixed inheritance modality. In this species, and likely in other sturgeons, accurate knowledge of the loci used for paternity analysis is therefore required.
Keywords: acipensaeridae; autotertraploid; allopolyploid; Adriatic sturgeon; disomic segregation; inheritance; microsatellites; tetrasomic segregation acipensaeridae; autotertraploid; allopolyploid; Adriatic sturgeon; disomic segregation; inheritance; microsatellites; tetrasomic segregation

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MDPI and ACS Style

Dalle Palle, S.; Boscari, E.; Bordignon, S.G.; Muñoz-Mora, V.H.; Bertorelle, G.; Congiu, L. Different Chromosome Segregation Patterns Coexist in the Tetraploid Adriatic Sturgeon Acipenser naccarii. Diversity 2022, 14, 745. https://doi.org/10.3390/d14090745

AMA Style

Dalle Palle S, Boscari E, Bordignon SG, Muñoz-Mora VH, Bertorelle G, Congiu L. Different Chromosome Segregation Patterns Coexist in the Tetraploid Adriatic Sturgeon Acipenser naccarii. Diversity. 2022; 14(9):745. https://doi.org/10.3390/d14090745

Chicago/Turabian Style

Dalle Palle, Stefano, Elisa Boscari, Simone Giulio Bordignon, Víctor Hugo Muñoz-Mora, Giorgio Bertorelle, and Leonardo Congiu. 2022. "Different Chromosome Segregation Patterns Coexist in the Tetraploid Adriatic Sturgeon Acipenser naccarii" Diversity 14, no. 9: 745. https://doi.org/10.3390/d14090745

APA Style

Dalle Palle, S., Boscari, E., Bordignon, S. G., Muñoz-Mora, V. H., Bertorelle, G., & Congiu, L. (2022). Different Chromosome Segregation Patterns Coexist in the Tetraploid Adriatic Sturgeon Acipenser naccarii. Diversity, 14(9), 745. https://doi.org/10.3390/d14090745

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