scholarly journals Genetic diversity, structure, and demographic change in tanoak, Lithocarpus densiflorus (Fagaceae), the most susceptible species to sudden oak death in California

2009 ◽  
Vol 96 (12) ◽  
pp. 2224-2233 ◽  
Author(s):  
Alejandro Nettel ◽  
Richard S. Dodd ◽  
Zara Afzal-Rafii
Keyword(s):  
Genetic Diversity ◽  
Demographic Change ◽  
Sudden Oak Death ◽  
Lithocarpus Densiflorus ◽  
Diversity Structure

Identification and Analysis of Genetic Diversity Structure Within Pisum Genus Based on Microsatellite Markers

2009 ◽  
Vol 8 (3) ◽  
pp. 257-267 ◽  
Author(s):  
Xu-xiao ZONG ◽  
Rebecca Ford ◽  
Robert R Redden ◽  
Jian-ping GUAN ◽  
Shu-min WANG
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Diversity Structure

Genetic diversity, structure and marker-trait associations in a collection of Italian tomato (Solanum lycopersicum L.) landraces

2008 ◽  
Vol 116 (5) ◽  
pp. 657-669 ◽  
Author(s):  
Andrea Mazzucato ◽  
Roberto Papa ◽  
Elena Bitocchi ◽  
Pietro Mosconi ◽  
Laura Nanni ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
Diversity Structure ◽  
Trait Associations

Genetic diversity, structure and individual assignment of Casta Navarra cattle: a well-differentiated fighting bull population

2013 ◽  
Vol 131 (1) ◽  
pp. 11-18 ◽  
Author(s):  
A. Sanz ◽  
I. Martin-Burriel ◽  
C. Cons ◽  
M. Reta ◽  
A. Poblador ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Individual Assignment ◽  
Well Differentiated ◽  
Diversity Structure

The effects of Phytophthora ramorum infection on hydraulic conductivity and tylosis formation in tanoak sapwood

2009 ◽  
Vol 39 (9) ◽  
pp. 1766-1776 ◽  
Author(s):  
Bradley R. Collins ◽  
Jennifer L. Parke ◽  
Barb Lachenbruch ◽  
Everett M. Hansen
Keyword(s):  
Hydraulic Conductivity ◽  
Water Transport ◽  
Specific Conductivity ◽  
Phytophthora Ramorum ◽  
Sudden Oak Death ◽  
Inoculation Site ◽  
Lithocarpus Densiflorus ◽  
Stem Water ◽  
Spread Of Infection ◽  
Flow Over Time

Tanoak ( Lithocarpus densiflorus (Hook. and Arn.) Rehder) is highly susceptible to sudden oak death, a disease caused by the oomycete Phytophthora ramorum Werres, De Cock & Man in’t Veld. Symptoms include a dying crown, bleeding cankers, and, eventually, death of infected trees. The cause of mortality is not well understood, but recent research indicates that water transport is reduced in infected trees. One possible mechanism causing the reduction in hydraulic conductivity is the presence of tyloses in xylem vessels. The development of tyloses was studied in relation to hydraulic conductivity in P. ramorum-infected sapwood. Inoculated logs showed a greater abundance of tyloses than noninoculated logs after 4 weeks. Inoculated trees with xylem infections had significantly more tyloses than noninoculated trees. In addition, the increase in number of tyloses was associated with a decrease in specific conductivity, suggesting that tyloses induced by infection with P. ramorum may interfere with stem sap flow. Over time, tylosis development increased in tissues farther from the inoculation site, in advance of the vertical spread of infection. The results suggest that infected sapwood contains numerous tyloses, which could significantly impede stem water transport.

scholarly journals Development of microsatellite markers for the Japanese endemic conifer Thuja standishii and transfer to other East Asian species

2019 ◽  
Author(s):  
James Raymond Peter Worth ◽  
K. S. Chang ◽  
Y.-H. Ha ◽  
Aili Qin
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Microsatellite Loci ◽  
East Asian ◽  
Clonal Reproduction ◽  
Sister Species ◽  
Asian Species ◽  
Expected Heterozygosity ◽  
Polymorphic Microsatellite ◽  
Diversity Structure

Abstract Objective: Design polymorphic microsatellite loci that will be useful for studies of the genetic diversity, structure and reproduction in the Japanese endemic conifer Thuja standishii and test the transferability of these loci to the two other East Asian species, T. sutchuenensis and T. koraiensis . Results: Fifteen loci were developed which displayed 3 to 21 alleles per locus (average = 9.2) among 97 samples from three populations of T. standishii . Observed heterozygosity for all samples varied between 0.33-0.75 (average 0.54) while expected heterozygosity values were higher with an average over the 15 loci of 0.62 (0.37-0.91). Low multi-locus probability of identity values (< 0.00001) indicate that these markers will be effective for identifying individuals derived from clonal reproduction. All 15 loci amplified in 13 samples of T. sutchuenensis , the sister species of T. standishii , with 1 to 11 alleles per locus (average = 4.33) while 13 loci amplified in four samples of the more distantly related T. koraiensis with 1 to 5 alleles per locus (average = 2.15).

scholarly journals Portuguese Pinus nigra J.F. Arnold populations: genetic diversity, structure and relationships inferred by SSR markers

2020 ◽  
Vol 77 (3) ◽  
Author(s):  
Alexandra Dias ◽  
Guia Giovannelli ◽  
Bruno Fady ◽  
Ilaria Spanu ◽  
Giovanni G Vendramin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Pinus Nigra ◽  
Diversity Structure
Sign in / Sign up

Export Citation Format

Share Document