A comparison of molecular markers and morphology forNeidiumtaxa (Bacillariophyta) from eastern North America

2017 ◽  
Vol 53 (3) ◽  
pp. 680-702 ◽  
Author(s):  
Keely E. Lefebvre ◽  
Paul B. Hamilton ◽  
Frances R. Pick
Keyword(s):  
Molecular Markers ◽  
North America ◽  
Eastern North America

scholarly journals Molecular Markers Used to Verify Interspecific Hybridization between Hemlock (Tsuga) Species

2002 ◽  
Vol 127 (4) ◽  
pp. 623-627 ◽  
Author(s):  
Margaret R. Pooler ◽  
Louise G.H. Riedel ◽  
S.E. Bentz ◽  
A.M. Townsend
Keyword(s):  
Molecular Markers ◽  
North America ◽  
Length Polymorphism ◽  
Fragment Length ◽  
Dna Marker ◽  
Fragment Length Polymorphism ◽  
Ease Of Use ◽  
Aflp Markers ◽  
Putative Hybrid ◽  
Eastern North America

Controlled pollinations were made between five hemlock (Tsuga) species from eastern North America and Asia, resulting in over 5700 germinating seedlings. A subset of putative hybrid seedlings from each cross was tested for authenticity by various DNA marker systems. The most reliable and useful system for verifying hybrids was amplified fragment-length polymorphism (AFLP) markers. Hybridizations between the eastern North American species, T. canadensis [L.] Carriere and T. caroliniana Engelm., and the Asian species, T. chinensis (Franch.) E. Pritz., were used as a model to test the inheritance, reliability, and ease of use of these markers. Using AFLP markers, we were able to verify 58 hybrids between T. caroliniana and T. chinensis, one hybrid between T. caroliniana and T. canadensis, but could find no definitive hybrids between T. canadensis and T. chinensis. Results using other marker systems, including RAPD, SCAR, ITS, and SSR, are also presented.

The Identification and Study of Indian Shell Middens in Eastern North America: 1643–1861

1986 ◽  
Vol 6 (3) ◽  
pp. 227-243 ◽  
Author(s):  
Andrew L. Christenson
Keyword(s):  
Nineteenth Century ◽  
Civil War ◽  
North America ◽  
East Coast ◽  
Eastern North America ◽  
Shell Midden ◽  
Shell Middens ◽  
Work Done

Although the interest in shell middens in North America is often traced to reports of the discoveries in Danish kjoekkenmoeddings in the mid-nineteenth century, extensive shell midden studies were already occurring on the East Coast by that time. This article reviews selected examples of this early work done by geologists and naturalists, which served as a foundation for shell midden studies by archaeologists after the Civil War.

HAVE WE SEEN THE LARGEST EARTHQUAKES IN EASTERN NORTH AMERICA?

2018 ◽  
Author(s):  
James S. Neely ◽  
◽  
Seth Stein ◽  
Miguel Merino ◽  
John Adams
Keyword(s):  
North America ◽  
Eastern North America
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