Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps
The genus <i>Neocaridina</i>, originating from East Asia and representing a small-size landlocked shrimp group of the family Atyidae, is an important group of ornamental shrimps and plays significant ecological roles in their natural habitats. Owing to the considerable variability of the...
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2024-10-01
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| author | Mei Yang Xiaodong Cui Xinzheng Li Dong Dong Xianjiang Kang Zhibin Gan |
| author_facet | Mei Yang Xiaodong Cui Xinzheng Li Dong Dong Xianjiang Kang Zhibin Gan |
| author_sort | Mei Yang |
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| description | The genus <i>Neocaridina</i>, originating from East Asia and representing a small-size landlocked shrimp group of the family Atyidae, is an important group of ornamental shrimps and plays significant ecological roles in their natural habitats. Owing to the considerable variability of the taxonomic characters it employed, <i>Neocaridina</i> is constantly under revision, and the validation of several species is currently questionable. In the present study, several <i>Neocaridina</i> shrimps were collected from the Baiyangdian drainage area. Through morphological examination, they exhibited delicately diagnostical differences in the dactyli of the third pereiopod and the endopod of the first and second pleopod and were classified into morph A, morph B and morph C. According to the literature description, morph A and morph C were identified as <i>N. denticulata denticulata</i> and <i>N. denticulata sinensis</i>, respectively. Among them, morph B presents an intermediate state between morph A and morph C. Subsequently, we determined the mitogenomes of morph A, morph B and morph C. Based on the morphological characteristics, genetic variation and phylogenetic tree, we contend that <i>N. davidi</i>, <i>N. d. denticulata</i>, <i>N. d. sinensis</i> and <i>N. heteropoda</i> should belong to the same species, and we propose retaining the name <i>N. denticulata</i>. The reconstructed mitogenomic phylogeny indicated that the monophyly of several genera within Atyidae has been challenged, suggesting that the established classification of Atyidae requires substantial taxonomic revision at all taxonomic levels. Furthermore, the tree’s topologies supported Atyidae at a deeper base within Caridea. More comprehensive taxon sampling is still needed to resolve the explicit internal relationships among Caridea. |
| format | Article |
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| spelling | doaj-art-e7dfa1bb6d1d4eb896b44d93fccaa5192024-11-26T17:57:54ZengMDPI AGCurrent Issues in Molecular Biology1467-30371467-30452024-10-014611122791229810.3390/cimb46110729Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean ShrimpsMei Yang0Xiaodong Cui1Xinzheng Li2Dong Dong3Xianjiang Kang4Zhibin Gan5Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCollege of Life Sciences, Hebei University, Baoding 071002, ChinaDepartment of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaDepartment of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCollege of Life Sciences, Hebei University, Baoding 071002, ChinaDepartment of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaThe genus <i>Neocaridina</i>, originating from East Asia and representing a small-size landlocked shrimp group of the family Atyidae, is an important group of ornamental shrimps and plays significant ecological roles in their natural habitats. Owing to the considerable variability of the taxonomic characters it employed, <i>Neocaridina</i> is constantly under revision, and the validation of several species is currently questionable. In the present study, several <i>Neocaridina</i> shrimps were collected from the Baiyangdian drainage area. Through morphological examination, they exhibited delicately diagnostical differences in the dactyli of the third pereiopod and the endopod of the first and second pleopod and were classified into morph A, morph B and morph C. According to the literature description, morph A and morph C were identified as <i>N. denticulata denticulata</i> and <i>N. denticulata sinensis</i>, respectively. Among them, morph B presents an intermediate state between morph A and morph C. Subsequently, we determined the mitogenomes of morph A, morph B and morph C. Based on the morphological characteristics, genetic variation and phylogenetic tree, we contend that <i>N. davidi</i>, <i>N. d. denticulata</i>, <i>N. d. sinensis</i> and <i>N. heteropoda</i> should belong to the same species, and we propose retaining the name <i>N. denticulata</i>. The reconstructed mitogenomic phylogeny indicated that the monophyly of several genera within Atyidae has been challenged, suggesting that the established classification of Atyidae requires substantial taxonomic revision at all taxonomic levels. Furthermore, the tree’s topologies supported Atyidae at a deeper base within Caridea. More comprehensive taxon sampling is still needed to resolve the explicit internal relationships among Caridea.https://www.mdpi.com/1467-3045/46/11/729<i>Neocaridina</i>integrative taxonomymorphologymitogenomesynonymgenetic distances |
| spellingShingle | Mei Yang Xiaodong Cui Xinzheng Li Dong Dong Xianjiang Kang Zhibin Gan Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps Current Issues in Molecular Biology <i>Neocaridina</i> integrative taxonomy morphology mitogenome synonym genetic distances |
| title | Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps |
| title_full | Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps |
| title_fullStr | Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps |
| title_full_unstemmed | Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps |
| title_short | Integrative Taxonomy Reveals New Insights into the Species Validity of the <i>Neocaridina davidi</i>-<i>N. denticulata</i>-<i>N. heteropoda</i> Complex and Mitogenomic Phylogeny of Caridean Shrimps |
| title_sort | integrative taxonomy reveals new insights into the species validity of the i neocaridina davidi i i n denticulata i i n heteropoda i complex and mitogenomic phylogeny of caridean shrimps |
| topic | <i>Neocaridina</i> integrative taxonomy morphology mitogenome synonym genetic distances |
| url | https://www.mdpi.com/1467-3045/46/11/729 |
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