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dc.contributor.authorYu, Zhengzh_CN
dc.contributor.authorZhang, Wenjingzh_CN
dc.contributor.authorLiu, Lemianzh_CN
dc.contributor.authorYang, Junzh_CN
dc.contributor.author张文静zh_CN
dc.date.accessioned2015-07-22T03:12:36Z
dc.date.available2015-07-22T03:12:36Z
dc.date.issued2014 APRzh_CN
dc.identifier.citationEUROPEAN JOURNAL OF PROTISTOLOGY, 2014,50(2):205-211zh_CN
dc.identifier.otherWOS:000335292400009zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/88142
dc.descriptionNational Basic Research Program of China [2012CB956103]; National Natural Science Foundation of China [31370471, 31172114, 30800097]; Natural Science Foundation for Distinguished Young Scholars of Fujian Province [2012706009]zh_CN
dc.description.abstractDifflugia is a morphologically diverse genus of testate amoebae, which are common components of freshwater ecosystems. We observed a new morphotype similar to Diffiugia tuberspinifera but without spine in four Xiamen reservoirs, Fujian Province, southeast China. We investigated its morphology and biometry using light and scanning electron microscopy. The linear discriminant analysis and principal component analysis of biometric characters revealed that the spiny and spineless forms of D. tuberspinifera differed only in the presence or absence of spine. Shell height, shell diameter, aperture diameter and collar height did not differ significantly between the two morphotypes. The number of conical spines varies from 0 to 8. However, the distribution of spine numbers showed two main modes at 0 (spineless form 45.1% of individuals) and 4-6 (38.9%), suggesting the possible existence of two genetically distinct lineages. Spines may have ecological and evolutionary significance. Our results suggested that the spiny and spineless morphotypes of D. tuberspinifera represent either a single variable taxon with different ecotypes or sibling species. Further morphological studies on clonal variations and molecular approaches are needed to clarify if the spineless morph represents an independent species or not. (C) 2013 Elsevier GmbH. All rights reserved.zh_CN
dc.language.isoen_USzh_CN
dc.publisherELSEVIER GMBH, URBAN & FISCHER VERLAGzh_CN
dc.source.urihttp://dx.doi.org/10.1016/j.ejop.2013.12.003zh_CN
dc.subjectTESTATE AMEBAS PROTOZOAzh_CN
dc.subjectMORPHOLOGICAL VARIABILITYzh_CN
dc.subjectNATURAL-POPULATIONSzh_CN
dc.subjectARCELLINIDAzh_CN
dc.subjectRHIZOPODAzh_CN
dc.subjectLECLERCzh_CN
dc.subjectECOLOGYzh_CN
dc.subjectBIOMETRYzh_CN
dc.subjectWETLANDSzh_CN
dc.subjectREVEALSzh_CN
dc.titleEvidence for two different morphotypes of Difflugia tuberspinifera from Chinazh_CN
dc.typeArticlezh_CN


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