The development of the avian embryo is used to demonstrate the potential for future advances in genomic strategies. A mathematical model is derived to indicate the most useful approaches for using chimeras to access the chicken genome. A review of the way that germ cells are processed through the gonad highlights the need for such an analysis of cell kinetics and indicates that the right rudime...

The identification of genetically homogeneous groups of individuals is an ancient issue in population genetics and in the case of crops like wheat, it can be valuable information for breeding programs, genetic mapping and germplasm resources. In this work we determined the genetic structure of a set of 102 Argentinean bread wheat (Triticum aestivum L.) elite cultivars using 38 biochemical and m...

Submitted: Mar 17, 2013; Accepted: May 1, 2013; Published: Aug 5, 2013 Abstract: Twelve accessions of tropical pumpkin of South Eastern Nigeria were evaluated in 2010 and 2011 to determine the extent of variability that exit in fruit, seed and leaf yield of the crop and to constitute a germplasm collections. Results of the study show that there exists a sufficient genetic variability among the ...

The present investigation was planned to assess genetic diversity for yield, yield contributing traits and quality traits in three hundred indigenous germplasm of bread wheat. The germplasm along with 4 checks were evaluated in augmented design at the Crop Research Centre of G.B. Pant University of Agriculture & Technology, Pantnagar during 2008-09. On the basis of dissimilarity coefficient, th...

Wilt caused by Fusarium oxysporum f.sp. ricini (Wr) Gordon is one of the major yield losing diseases in castor. Cultivating wilt resistant cultivars is an effective strategy to control the disease. Utilization of diverse sources of stable resistance is a prerequisite for durable resistance breeding. The experiment was conducted to identify genetically diverse resistant sources in castor germpla...

A microsatellite-enriched library was constructed and a set of 19 SSR markers were developed to characterize a germplasm collection of Hyptis pectinata (L.) Poit., maintained at the Universidade Federal de Sergipe (UFS). Fifteen markers of 19 ranged from moderately to highly polymorphic. A total of 113 alleles were identified, with a mean of 7.52 alleles per locus. The mean HO and HE were 0.582...

The loss of plant genetic resources has made necessary the development of new ex situ conservation methods. Advances in biotechnology provide new methods for plant germplasm conservation and evaluation. Biotechnological tools like in vitro culture, cryopreservation, and molecular markers offer a valuable alternative to plant diversity studies, management of genetic resources and ultimately cons...

The primary goal of the Walnut Improvement Program, which was initiated in 1982 as a cooperative effort between USDA-ARS and U.C. Davis, is to develop germplasm with increased resistance or tolerance to the two major diseases limiting commercial production of Persian walnuts. These are the blackline and the Phytophthora root and crown rot diseases. Also under the auspices of this program are th...

The International Rice Information System (IRIS, http://www.iris.irri.org) is the rice implementation of the International Crop Information System (ICIS, http://www.icis.cgiar.org), a database system for the management and integration of global information on genetic resources and germplasm improvement for any crop. Building upon the germplasm genealogy and field data components of ICIS, IRIS i...

For millennia, seeds have been freely available to use for farming and plant breeding without restriction. Within the past century, however, intellectual property rights (IPRs) have threatened this tradition. In response, a movement has emerged to counter the trend toward increasing consolidation of control and ownership of plant germplasm. One effort, the Open Source Seed Initiative (OSSI, www...