Harnessing diversity from germplasm collections is more feasible today because of the development of lower-cost and higher-throughput genotyping methods. However, the cost of phenotyping is still generally high, so efficient methods of sampling and exploiting useful diversity are needed. Genomic selection (GS) has the potential to enhance the use of desirable genetic variation in germplasm coll...

One of the most signifi cant, long-term public U.S. Upland cotton (Gossypium hirsutum L.) germplasm enhancement programs is known as the Pee Dee germplasm program. The unique, genetic foundation of the Pee Dee germplasm was created using germplasm from Upland, Sea Island (Gossypium barbadense L.), and primitive diploid cottons. Since the program’s inception in 1935, the Pee Dee germplasm progra...

The tropical maize race Tuxpeño is a well-known race of Mexican dent germplasm which has greatly contributed to the development of tropical and subtropical maize gene pools. In order to investigate how it could be exploited in future maize improvement, a panel of maize germplasm accessions was assembled and characterized using genome-wide Single Nucleotide Polymorphism (SNP) markers. This panel...

Several species within the genus Theobroma have particularly high economic value, including T. cacao and T. grandiflorum. Other species in this genus, such as T. speciosum and T. subincanum, have potential value for use in the conservation of genetic diversity in breeding programs. These latter species could also be domesticated or improved to produce commercial products. Using 13 simple sequen...

Austral summer frosts in the Andean highlands are ubiquitous throughout the crop cycle, causing yield losses. In spite of the existing warming trend, climate change models forecast high variability, including freezing temperatures. As the potato center of origin, the region has a rich biodiversity which includes a set of frost resistant genotypes. Four contrasting potato genotypes--representing...

This paper uses value chain analysis as a novel method to examine the conservation status of and strategies for cherimoya (Annona cherimola Mill.), an underutilized, perennial fruit species native to the Andean valleys of Ecuador, Peru and Bolivia. It was found that value chain features such as market channels, chain governance, quality performance and distribution of added value over chain act...

120 Journal of Plant Registrations, Vol 2, No. 2, May 2008 Drought stress reduces dry bean seed yield in most production regions worldwide (White and Singh, 1991). The release of pinto bean (Phaseolus vulgaris L.) germplasm CO46348 (Reg. No. GP-275, PI 651500) will provide plant breeders with drought-tolerant, pinto bean germplasm that takes advantage of a full growing season (95–98 d) and has ...

Globally, China has the largest scale of kelp cultivation and production operations. However, its aquaculture industry is suffering from declining germplasm diversity, degradation agronomic traits, presence polluted environments, changing ocean conditions increasing anthropological interference. This review covers two most commercially important species in China, viz. Saccharina japonica Undari...

In vitro plant tissue culture and biotechnology used to assist support the development of breeding when classical methods propagation must be accelerated or it was necessary overcome barriers inaccessible by approaches. asparagus, improve multiple tasks, a high number in have been used, such as regeneration through organogenesis, embryogenesis, manipulation ploidy, protoplast isolation, genetic...