Development of mini core collection of Japanese rice landrace

Marker Development for Rice Blast Resistance Gene Pi66(t) and Application in the USDA Rice Mini-Core Collection

Molecular markers are useful for the identification of critical genes controlling agricultural traits of interest in crop germplasm and for the use of these genes in crop improvement using marker-assisted selection (MAS). The improvement of blast disease resistance of rice (Oryza sativa L.) varieties is one of the major goals for rice breeders. The blast resistance (R) gene Pi66(t) was previous...

Development and Evaluation of a Mini Core Collection for the U.S. Peanut Germplasm Collection

examining all accessions in the core collection for a desired characteristic. This information is then used to A core collection (831 accessions) has been developed to represent determine which clusters of accessions in the entire germthe U.S. Arachis hypogaea L. germplasm collection. This core collection has been shown to be effective in improving the efficiency of plasm collection should be e...

Association Mapping of Four Important Traits Using the USDA Rice Mini-Core Collection

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

Distribution of Hwc2-1, a causal gene of a hybrid weakness, in the World Rice Core collection and the Japanese Rice mini Core collection: its implications for varietal differentiation and artificial selection

A pair of complementary genes, Hwc1-1 at HWC1 locus and Hwc2-1 at HWC2 locus, cause a weakness phenomenon in rice. For this study, we performed haplotype analysis around the HWC2 locus in two core collections comprising 119 accessions. We also examined reactions to phenol and Xanthomonas oryzae pv. oryzae (Xoo) Japanese race I. To elucidate the genetic relations among all accessions, we analyze...