A population of Hypsibius oberhaeuseri without males(4n = 14) was found near Trento, Italy. The karyologic examination of verified that the population belongs to a tetraploid biotype riproducing by an ameiotic parthenogenesis. Some quantitative inquiries about this tetraploid biotype and the two others already known (diploid and triploid) indicate that the somatic size increases with the ploidy degree. The presence of three biotypes in H. oberhaeuseri demostrates that some species of Tardigrada have a high level of complexity.
Primo caso di una popolazione tetraploide nei Tardigradi / Bertolani, Roberto. - In: ATTI DELLA ACCADEMIA NAZIONALE DEI LINCEI. RENDICONTI DELLA CLASSE DI SCIENZE FISICHE, MATEMATICHE E NATURALI. - ISSN 0392-7881. - STAMPA. - 55:(1974), pp. 571-574.
Primo caso di una popolazione tetraploide nei Tardigradi
BERTOLANI, Roberto
1974
Abstract
A population of Hypsibius oberhaeuseri without males(4n = 14) was found near Trento, Italy. The karyologic examination of verified that the population belongs to a tetraploid biotype riproducing by an ameiotic parthenogenesis. Some quantitative inquiries about this tetraploid biotype and the two others already known (diploid and triploid) indicate that the somatic size increases with the ploidy degree. The presence of three biotypes in H. oberhaeuseri demostrates that some species of Tardigrada have a high level of complexity.Pubblicazioni consigliate
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