An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo
Members of the genus Echiniscus C.A.S. Schultze, 1840 are mostly unisexual, with thelytokously reproducing females. Therefore, every newly described dioecious species in the genus is particularly interesting. Here, we describe Echiniscus masculinus sp. nov. from Gunung Kinabalu, the highest peak of...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Pensoft Publishers
2020-03-01
|
| Series: | Zoosystematics and Evolution |
| Online Access: | https://zse.pensoft.net/article/49989/download/pdf/ |
| _version_ | 1818040348576841728 |
|---|---|
| author | Piotr Gąsiorek Katarzyna Vončina Łukasz Michalczyk |
| author_facet | Piotr Gąsiorek Katarzyna Vončina Łukasz Michalczyk |
| author_sort | Piotr Gąsiorek |
| collection | DOAJ |
| description | Members of the genus Echiniscus C.A.S. Schultze, 1840 are mostly unisexual, with thelytokously reproducing females. Therefore, every newly described dioecious species in the genus is particularly interesting. Here, we describe Echiniscus masculinus sp. nov. from Gunung Kinabalu, the highest peak of Borneo and the entire Southeast Asia. The new species belongs in the predominantly parthenogenetic E. virginicus complex, and its females are confusingly similar to females of the pantropical E. lineatus Pilato et al., 2008, another member of this group. However, genetic evidence and noticeable sexual dimorphism clearly delineate the new species. Males of E. masculinus sp. nov. are unlike females in the body proportions, cuticular sculpturing, and appendage configuration. The new discoveries provide a justification to review the current knowledge about evolution and forms of sexual dimorphism within Echiniscus. |
| first_indexed | 2024-12-10T08:13:06Z |
| format | Article |
| id | doaj.art-04a0e7ad41b74b60a1b27ce8d6f26c4e |
| institution | Directory Open Access Journal |
| issn | 1860-0743 |
| language | English |
| last_indexed | 2024-12-10T08:13:06Z |
| publishDate | 2020-03-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Zoosystematics and Evolution |
| spelling | doaj.art-04a0e7ad41b74b60a1b27ce8d6f26c4e2022-12-22T01:56:31ZengPensoft PublishersZoosystematics and Evolution1860-07432020-03-0196110311310.3897/zse.96.4998949989An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from BorneoPiotr Gąsiorek0Katarzyna Vončina1Łukasz Michalczyk2Jagiellonian UniversityJagiellonian UniversityJagiellonian UniversityMembers of the genus Echiniscus C.A.S. Schultze, 1840 are mostly unisexual, with thelytokously reproducing females. Therefore, every newly described dioecious species in the genus is particularly interesting. Here, we describe Echiniscus masculinus sp. nov. from Gunung Kinabalu, the highest peak of Borneo and the entire Southeast Asia. The new species belongs in the predominantly parthenogenetic E. virginicus complex, and its females are confusingly similar to females of the pantropical E. lineatus Pilato et al., 2008, another member of this group. However, genetic evidence and noticeable sexual dimorphism clearly delineate the new species. Males of E. masculinus sp. nov. are unlike females in the body proportions, cuticular sculpturing, and appendage configuration. The new discoveries provide a justification to review the current knowledge about evolution and forms of sexual dimorphism within Echiniscus.https://zse.pensoft.net/article/49989/download/pdf/ |
| spellingShingle | Piotr Gąsiorek Katarzyna Vončina Łukasz Michalczyk An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo Zoosystematics and Evolution |
| title | An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo |
| title_full | An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo |
| title_fullStr | An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo |
| title_full_unstemmed | An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo |
| title_short | An overview of the sexual dimorphism in Echiniscus (Heterotardigrada, Echiniscoidea), with the description of Echiniscus masculinus sp. nov. (the virginicus complex) from Borneo |
| title_sort | overview of the sexual dimorphism in echiniscus heterotardigrada echiniscoidea with the description of echiniscus masculinus sp nov the virginicus complex from borneo |
| url | https://zse.pensoft.net/article/49989/download/pdf/ |
| work_keys_str_mv | AT piotrgasiorek anoverviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo AT katarzynavoncina anoverviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo AT łukaszmichalczyk anoverviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo AT piotrgasiorek overviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo AT katarzynavoncina overviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo AT łukaszmichalczyk overviewofthesexualdimorphisminechiniscusheterotardigradaechiniscoideawiththedescriptionofechiniscusmasculinusspnovthevirginicuscomplexfromborneo |