A cladistic phylogeny of the family Patellidae (Mollusca: Gastropoda)
نویسندگان
چکیده
منابع مشابه
Molecular phylogenetics of Caenogastropoda (Gastropoda: Mollusca).
Caenogastropoda is the dominant group of marine gastropods in terms of species numbers, diversity of habit and habitat and ecological importance. This paper reports the first comprehensive multi-gene phylogenetic study of the group. Data were collected from up to six genes comprising parts of 18S rRNA, 28S rRNA (five segments), 12S rRNA, cytochrome c oxidase subunit I, histone H3 and elongation...
متن کاملMolecular Evolution and Phylogeny of Actin Genes in Haliotis Species (Mollusca: Gastropoda)
Gene conversion and positive selection are often proposed as mechanisms for the evolution of biological molecules. Changes in sequence similarity have been used as evidence for gene conversion (Crain et al., 1987). Evidence for the evolution of the actin gene family by gene conversion in the echinoderms, Strongylocentrotus purpuratus and Pisaster ochraceus, came from amino acid and DNA sequence...
متن کاملPoecilogony in the caenogastropod Calyptraea lichen (Mollusca: Gastropoda)
In marine invertebrates, polymorphism and polyphenism in mode of development are known as “poecilogony.” Understanding the environmental correlates of poecilogony and the developmental mechanisms that produce it could contribute to a better understanding of evolutionary transitions in mode of development. However, poecilogony is rare in marine invertebrates, with only ten recognized, well-docum...
متن کاملChecklist of the family Epitoniidae (Mollusca: Gastropoda) in Taiwan with description of a new species and some new records
BACKGROUND The family Epitoniidae is a group of small to medium-sized gastropods and occurs globally from the intertidal zone to abyssal seabeds. There are 101 epitoniid species currently recorded from Taiwan. NEW INFORMATION Based on our investigations of seashores and fishing ports of Taiwan, a new species and 12 new records of Epitoniidae species are reported. Of the 12 new records, four a...
متن کاملGiant embryos and hatchlings of Antarctic nudibranchs (Mollusca: Gastropoda: Heterobranchia)
of development up to ready-to-hatch juveniles 2.5 mm in length. Based on their morphology and development in egg masses maintained in the laboratory, the embryonic period for B. hodgsoni is estimated to be up to 10 years, and for D. kerguelenensis 13 months. Thus, B. hodgsoni has the largest egg capsules and probably the largest hatchlings of any mollusc. Chemical analyses of D. kerguelenensis ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences
سال: 1998
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.1998.0316