Shell shape convergence masks biological diversity in gliding scallops: description of of Ylistrum n. gen. (Pectinidae) from the Indo-Pacific Ocean
Article
Mynhardt, Glene, Alejandrino, Alvin, Puslednik, Louise, Corrales, Joezen and Serb, Jeanne M.. 2014. "Shell shape convergence masks biological diversity in gliding scallops: description of of Ylistrum n. gen. (Pectinidae) from the Indo-Pacific Ocean ." Journal of Molluscan Studies. 80, pp. 400-411. https://doi.org/10.1093/mollus/eyu038
| Article Title | Shell shape convergence masks biological diversity in gliding scallops: description of of Ylistrum n. gen. (Pectinidae) from the Indo-Pacific Ocean |
|---|---|
| ERA Journal ID | 2943 |
| Article Category | Article |
| Authors | Mynhardt, Glene, Alejandrino, Alvin, Puslednik, Louise, Corrales, Joezen and Serb, Jeanne M. |
| Journal Title | Journal of Molluscan Studies |
| Journal Citation | 80, pp. 400-411 |
| Number of Pages | 12 |
| Year | 2014 |
| Publisher | Oxford University Press |
| Place of Publication | United Kingdom |
| ISSN | 0260-1230 |
| 1464-3766 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1093/mollus/eyu038 |
| Web Address (URL) | https://academic.oup.com/mollus/article/80/4/400/1022448 |
| Abstract | The scallop genus Amusium Roding, 1798 is one of few genera of Pectinidae that includes taxa capable of long-distance swimming or gliding. Membership of the genus has been defined primarily by shell shape, and it currently includes only three species: the type species A. pleuronectes (Linnaeus, 1758), A. balloti (Bernardi, 1861) and A. japonicum (Gmelin, 1791). In this study, we use molecular data and aspects of shell morphology to resolve the systematics of the genus. Phylogenetic reconstruction of Pectinidae using nuclear and mitochondrial DNA sequence from four genes supports a polyphyletic Amusium. Differences in internal ribbing pattern provide morphological evidence for the recognition of the two clades identified in our phylogenetic analyses. In contrast, quantification of shell shape through geometric morphometric methods indicates that shape is a convergent phenotype and is not informative in terms of distinguishing between the two gliding lineages. Based on these results, we describe Ylistrum, n. gen, which includes two species previously assigned to Amusium. We provide characters that separate the now monotypic Amusium from the two species, Ylistrum balloti, n. comb. and Y. japonicum, n. comb. |
| Keywords | swimming behavior |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 310401. Animal systematics and taxonomy |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Iowa State University, United States |
| University of San Carlos, Philippines |
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