scholarly journals Methods of rapid appraisal for in-situ management of genetic resources: a Malagasy set of tools

2001 ◽  
Vol 33 (S1) ◽  
Author(s):  
Didier Babin ◽  
Fleurette Andriantsilavo ◽  
Sigrid Aubert ◽  
Géraldine PÉchard ◽  
Caroline Bourgeois ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Rapid Appraisal ◽  
In Situ Management

scholarly journals Development and Characterization of Wheat-Agropyron cristatum Introgression Lines Induced by Gametocidal Genes and Wheat ph1b Mutant

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 277
Author(s):  
Alejandro Copete-Parada ◽  
Carmen Palomino ◽  
Adoración Cabrera
Keyword(s):  
Genetic Resources ◽  
Agropyron Cristatum ◽  
Homologous Gene ◽  
Aegilops Cylindrica ◽  
Induction Frequency ◽  
Structural Aberrations ◽  
Translocation Lines ◽  
New Germplasm

The P genome of Agropyron cristatum Gaertn. contains many desirable genes that can be utilized as genetic resources to improve wheat. In this research, we used both the gametocidal chromosome 2Cc and the pairing homologous gene (Ph1b) mutant to induce structural aberrations and translocations between wheat and the 4P, 5P, and 6P genome chromosomes. By using the two approaches, a total of 19 wheat-A. cristatum translocations have been identified, in which 13 were induced by the Triticum aestivum cv. Chinese Spring (CS) ph1b mutant (CS ph1b) and six were induced by gametocidal chromosome 2Cc from Aegilops cylindrica Host. The wheat-4P, -5P and -6P A. cristatum translocations were characterized by in situ hybridization and by a set of conserved orthologous set (COS) molecular markers. The aberrations included centromeric translocations, terminal translocations, dicentric translocations, and deletions. The average induction frequency of chromosome structural aberrations was 10.9% using gametocidal 2Cc chromosome and 8.8% using ph1b mutant. The highest frequency obtained was for chromosome 4P using both approaches. All the wheat-A. cristatum translocation lines obtained were valuable for identifying A. cristatum chromosome 4P, 5P, and 6P related genes. In addition, these lines provided genetic resources and new germplasm accessions for the genetic improvement of wheat.

Strategies for In Situ Conservation of Crop Genetic Resources in Dryland Areas of Africa

2003 ◽  
pp. 55-62 ◽  
Author(s):  
M. Grum ◽  
V. Guerette ◽  
B. Kone ◽  
A. Sidibe ◽  
M. Kouressy ◽  
...  
Keyword(s):  
Genetic Resources ◽  
In Situ Conservation ◽  
Crop Genetic Resources

In Situ and Ex Situ Conservation of Coconut Genetic Resources

2020 ◽  
pp. 51-75
Author(s):  
Roland Bourdeix ◽  
Steve Adkins ◽  
Vincent Johnson ◽  
Lalith Perera ◽  
Sisunandar
Keyword(s):  
Genetic Resources ◽  
Ex Situ Conservation ◽  
Ex Situ

scholarly journals Ex situ conservation of genetic resources of field elm (Ulmus minor Mill) and European white elm (Ulmus laevis Pall)

Genetika ◽  
2004 ◽  
Vol 36 (3) ◽  
pp. 221-227
Author(s):  
Jelena Aleksic ◽  
Sasa Orlovic
Keyword(s):  
Genetic Resources ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
In Vitro Production ◽  
Ulmus Minor ◽  
Conservation Of Genetic Resources ◽  
Ulmus Laevis ◽  
Vitro Production

Principles of the conservation of genetic resources of elms (Ulmus spp) do not differ fundamentally from the general principles accepted for the conservation of genetic resources of other common Noble Hardwoods. Efficient conservation can best be achieved through appropriate combination of in situ and ex situ methods, which have distinct advantages. Besides that, ex situ conservation is employed when emergency measures are needed for rare endangered populations and when populations are too small to be managed in situ (e.g. risks of genetic drift and inbreeding). The aim of our research is ex situ conservation of genetic resources of field elm {Ulmus minor Mill) and European white elm (Ulmus laevis Pall) through establishment of field genebanks. Sampling was conducted in one population of field elm and one population of white elm. Plant material (buds) from 8 trees of field elm and 10 trees of white elm was used for in vitro production of clones. Obtained clones will be used for establishment of field genebanks on the experimental estate of the Institute of Lowland Forestry and Environment.

Trends in lobular carcinoma in situ management: endocrine therapy use in California and New Jersey

2019 ◽  
Vol 30 (2) ◽  
pp. 129-136
Author(s):  
Schelomo Marmor ◽  
Bonnie Jerome-D’Emilia ◽  
James W. Begun ◽  
Jane Yuet Ching Hui ◽  
Ariella M. Altman ◽  
...  
Keyword(s):  
New Jersey ◽  
Endocrine Therapy ◽  
Carcinoma In Situ ◽  
Lobular Carcinoma ◽  
Lobular Carcinoma In Situ ◽  
In Situ Management

scholarly journals Duck Genetic Resources, Their Improvement And Conservation In Bangladesh: A Review

2020 ◽  
Vol 17 (2) ◽  
pp. 31-42
Author(s):  
MA Hamid
Keyword(s):  
Genetic Resources ◽  
Present Article ◽  
Egg Production ◽  
Genetic Characterization ◽  
Farming Systems ◽  
Ex Situ ◽  
Baseline Information ◽  
Research Institute

The present article addresses the scenario of duck genetic resources, their production and reproduction performances, their improvement and conservation in Bangladesh. The duck, among other poultry species available in the country, are used for meat and egg production. The duck germplasm available in the country are indigenous/native, improved native, exotic and their crosses. The native duck population is comprised of Indigenous Non-descript, Deshi White, Deshi Black, Nageshwari, Sylhet Mete etc. The improved native such as, BLRI-1 and BLRI-2 are developed by Bangladesh Livestock Research Institute. The exotic duck such as, Khaki Campbell, Indian Runner, Jending, Muscovy, White Pekin, Cherry Valley, Thailand Black etc. are also used at farms level. The crossbred of different ducks are used in the country at different farming systems. Improvement and conservation of native duck are ongoing both in-situ and ex-situ in vivo by DLS, BLRI, BAU and also by others. The present study provided baseline information on duck germplasm of Bangladesh which could be useful for future genetic characterization, improvement and conservation. SAARC J. Agri., 17(2): 31-42 (2019)

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