Morphology and molecular phylogeny of two new species in genus Freyastera (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks
Zhang, Ruiyan1,2,3; Wang, Chunsheng1,2,3,4; Zhou, Yadong2,3; Zhang, Haibin5
2019-12-01
Source PublicationDEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
ISSN0967-0637
Volume154Issue:1Pages:11
Abstract

Freyastera (Downey, 1986) is a derived group of deep-sea starfish in the order Brisingida with 6 arms and slender ambulacral plates, whose taxonomy and phylogeny have rarely been investigated. In this research, two new species of Freyastera are reported from the northwest Pacific Ocean, both characterized by fairly long and numerous lateral spines and the presence of furrow spines. Freyastera delicata n. sp. is further distinguished from other species by having 6-8 spinelets arranged in a transverse line on each abactinal arm plate. Freyastera basketa n. sp. is similar to the Atlantic species Freyastera sexradiata (Perrier, 1885), but differs from the latter by the presence of pedicellariae on the abactinal surface and number of mouth spines and lateral spines. A revised key to Freyastera and potential Freyastera spp. from the genus Freyella (Perrier, 1885) is provided. Phylogenetic analysis was conducted using available molecular data for the order Brisingida. The intraspecific and interspecific divergence within Freyastera are recognized from a COI genetic distance matrix, in which some abnormal intraspecific distances are found between the known species, which might indicate the existence of cryptic species and an underestimated diversity in the genus. A phylogenetic tree of Brisingida is constructed based on a concatenated sequence dataset of COI, 16S and H3 gene fragments. The tree supports the affinity of Freyastera and Freyella, which together form a crown Glade within the order. The global distribution and in situ observations of Freyastera are discussed to provide information on their ecological characteristics and diversity.

KeywordFreyastera New species Key Molecular phylogeny Global distribution
DOI10.1016/j.dsr.2019.103163
Indexed BySCI
Funding OrganizationNational Program on Key Basic Research Project (973 Program) of China ; foundation of China Ocean Mineral Resources RD Association ; scientific research fund of the Second Institute of Oceanography, MNR
Language英语
Funding ProjectNational Program on Key Basic Research Project (973 Program) of China[2015CB755902] ; foundation of China Ocean Mineral Resources RD Association[DY135-E2-2-03] ; scientific research fund of the Second Institute of Oceanography, MNR[JG1528]
WOS KeywordMITOCHONDRIAL ; ECHINODERMATA ; FORCIPULATACEA ; SYSTEMATICS ; INSIGHTS
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000506714600006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/7399
Collection深海科学研究部_深海生物学研究室_海洋生物生态与进化研究组
Corresponding AuthorWang, Chunsheng
Affiliation1.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200240, Peoples R China
2.Minist Nat Resources, State Ocean Adm, Key Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Peoples R China
3.Minist Nat Resources, Inst Oceanog 2, Hangzhou 310012, Peoples R China
4.State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Peoples R China
5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ruiyan,Wang, Chunsheng,Zhou, Yadong,et al. Morphology and molecular phylogeny of two new species in genus Freyastera (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2019,154(1):11.
APA Zhang, Ruiyan,Wang, Chunsheng,Zhou, Yadong,&Zhang, Haibin.(2019).Morphology and molecular phylogeny of two new species in genus Freyastera (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,154(1),11.
MLA Zhang, Ruiyan,et al."Morphology and molecular phylogeny of two new species in genus Freyastera (Asteroidea: Brisingida: Freyellidae), with a revised key to close species and ecological remarks".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 154.1(2019):11.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Ruiyan]'s Articles
[Wang, Chunsheng]'s Articles
[Zhou, Yadong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Ruiyan]'s Articles
[Wang, Chunsheng]'s Articles
[Zhou, Yadong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Ruiyan]'s Articles
[Wang, Chunsheng]'s Articles
[Zhou, Yadong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.