Neurogenesis suggests independent evolution of opercula in serpulid polychaetes
نویسندگان
چکیده
منابع مشابه
Written in stone: history of serpulid polychaetes through time
Ippolitov, A.P., Vinn, O., Kupriyanova, E.K. and Jäger, M. 2014. Written in stone: history of serpulid polychaetes through time. Memoirs of Museum Victoria 71: 123–159. Although the fossil record of annelids in general is poor, calcareous tube-building Serpulidae are a notable exception. The “stumbling block” of understanding the serpulid fossil record is obtaining reliable taxonomic interpreta...
متن کاملDrilling Predation on Serpulid Polychaetes (Ditrupa arietina) from the Pliocene of the Cope Basin, Murcia Region, Southeastern Spain
We report quantitative analyses of drilling predation on the free-living, tube-dwelling serpulid polychaete Ditrupa arietina from the Cope Cabo marine succession (Pliocene, Spain). Tubes of D. arietina are abundant in the sampled units: 9 bulk samples from 5 horizons yielded ~5925 specimens of D. arietina. Except for fragmentation, tubes were well preserved. Complete specimens ranged from 3.1 t...
متن کاملImmunocytochemical characterization of macular hole opercula.
OBJECTIVES To immunocytochemically characterize the neural and glial elements of idiopathic full-thickness macular hole (FTMH) opercula excised during vitrectomy, and to correlate them with the outcome of surgery. METHODS Opercula were collected from eyes undergoing vitrectomy for stage 3 FTMH and processed for transmission electron microscopy, light epifluorescence, and laser scanning confoc...
متن کاملInhibition of cell proliferation in black-capped chickadees suggests a role for neurogenesis in spatial learning.
Following development, the avian brain continues to produce neurons throughout adulthood, which functionally integrate throughout the telencephalon, including the hippocampus. In food-storing birds like the black-capped chickadee (Poecile atricapillus), new neurons incorporated into the hippocampus are hypothesized to play a role in spatial learning. Previous results on the relation between hip...
متن کاملExperimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin
Sexual selection and social selection are two important theories proposed for explaining the evolution of colorful ornamental traits in animals. Understanding signal honesty requires studying how environmental and physiological factors during development influence the showy nature of sexual and social ornaments. We experimentally manipulated physiological stress and immunity status during the m...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2009
ISSN: 1471-2148
DOI: 10.1186/1471-2148-9-270