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Abstract Detail


Conservation Biology

Raviram, Ramya [1], Eisenman, Sasha [2], Novy, Ari [3], Bonos, Stacy [4], Grabosky, Jason [5], Struwe, Lena [1].

Assessing the genetic diversity in an ex situ germplasm collection of dawn redwoods (Metasequoia glyptostroboides).

The dawn redwood (Metasequoia glyptostroboides Hu et. Cheng) is a unique species that belongs to a genus originally thought to have gone extinct around 10 to 20,000,000 million years ago. In the 1940’s extant populations were discovered in the central mountains of China and the tree was deemed a “living fossil”. This discovery received a great deal of international press and is considered a great event in the history of botany. Metasequoia glyptostroboides is currently listed in the China Plant Red Data Book and The List of Rare and Endangered Plants protected in China, which was produced by the Chinese Academy of Sciences. According to the International Union for Conservation of Nature and Natural Resources (IUCN), the species is critically endangered. In 1991 a research team in the U.S., led by Dr. John E. Kuser, of Rutgers University, worked in collaboration with Chinese scientists to develop a large scale ex situ conservation program for the dawn redwood. Seeds collected from 52 parent trees in Hubei, Hunan and Sichuan Provinces, were germinated and set out in plots cultivated at Rutgers University and The Dawes Arboretum. This is possibly the largest ex situ germplasm collection outside of China. We have conducted an analysis using Amplified Fragment Length Polymorphisms (AFLP) to assess the genetic distance between individuals from different parental lineages and to determine the overall genetic diversity contained in this collection.


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1 - Rutgers University, Plant Biology and Pathology, 237 Foran Hall, 59 Dudley Rd, New Brunswick, NJ, 08901, USA
2 - Rutgers University, Department Plant Biology & Pathology, 237 Foran Hall, 59 Dudley Road, New Brunswick, New Jersey, 08901, USA
3 - Rutgers University, Plant Biology and Pathology, 273 Foran Hall, 59 Dudley Rd, New Brunswick, NJ, 08901, USA
4 - Rutgers University, Plant Biology and Pathology, 284 Foran Hall, 59 Dudley Rd, New Brunswick, NJ, 08901, USA
5 - Rutgers University, Ecology, Evolution, & Natural Resources, 14 College Farm Rd, New Brunswick, New Jersey, 08901, USA

Keywords:
AFLP
Genetic diversity
amplified fragment length polymorphism
dawn redwood
Metasequoia glyptostroboides
germplasm collection.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM
Number: PCB006
Abstract ID:775


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