Introduced or glacial relict? Phylogeography of the cryptogenic tunicate Molgula manhattensis (Ascidiacea, Pleurogona)
نویسندگان
چکیده
منابع مشابه
An electron microscope study on the oocyte, test cells and follicular envelope of the tunicate, Molgula manhattensis.
Both inner follicle cells and test cells in the tunicate ovary appear to engage in active synthesis and secretion during growth of the oocyte. Both cell types contain prominent Golgi systems, numerous vesicles and cisternae of endoplasmic reticulum, and typical mitochondria. Two types of special inclusions develop in the inner follicle cells. The first is a homogeneous inclusion of low density ...
متن کاملComparative phylogeography of two North American 'glacial relict' crustaceans.
The Pleistocene glaciations represent the most recent and dramatic series of habitat changes since the Cretaceous. The impact of these events was particularly acute for aquatic taxa with poor powers of dispersal, but few organisms have evolutionary histories more intimately entwined with the advance and retreat of ice than the 'glacial relicts'. In this study, we used a mitochondrial gene, cyto...
متن کاملPhylogeography of declining relict and lowland leopard frogs in the desert Southwest of North America
1 School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, USA 2 Public Lands Institute, University of Nevada, Las Vegas, Las Vegas, NV, USA 3 Arizona Game and Fish Department, Nongame Branch, Phoenix, AZ, USA 4 State University of New York College of Environmental Science and Forestry, Syracuse, NY, USA 5 Department of Natural Sciences, Western New Mexico University, Silver Cit...
متن کاملPhylogeography and conservation genetics of the rare and relict Bretschneidera sinensis (Akaniaceae)
Bretschneidera sinensis, a class-I protected wild plant in China, is a relic of the ancient Tertiary tropical flora endemic to Asia. However, little is known about its genetics and phylogeography. To elucidate the current phylogeographic patterns and infer the historical population dynamics of B. sinensis, and to make recommendations for its conservation, three non-coding regions of chloroplast...
متن کاملphylogeography and genetic diversity of the lesser mouse- eared bat (myotis blythii) in iran
in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...
ذخیره 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: Diversity and Distributions
سال: 2010
ISSN: 1366-9516
DOI: 10.1111/j.1472-4642.2010.00718.x