The project aim is to phenotype photosynthetic traits from diverse lines of wheat and, combined with next generation genetic approaches, identify markers and genes associated with each trait. This dataset includes phenotypic data for 97 lines of the Watkins Core Collection. Next generation genetic approaches will enable the identification of markers and genes associated with each trait.
These datasets include an updated linkage map for the Seri/Babax RIL population and the raw genotype data we used to construct the map. (1) We updated the genetic map of Seri/Babax population with 1748 non-redundant markers (1165 90K SNPs, 207 DArTseq SNPs, 183 AFLP, 111 DArT array, and 82 SSR). The updated map was 5576.5 cM in length with 31 linkage groups covering the 21 wheat chromosomes. The updated map has a better genome coverage, especially in D genome, and higher density than in earlier maps; and also shows a good collinearity with the IWGSC RefSeq v1.0 genome. The new linkage map can provide a useful genomic resource for further genetic analyses of important traits in the Seri/Babax population. (2) We also uploaded the raw genotyping data of 6470 markers (5386 90K SNPs, 609 DArTseq SNPs, 211 AFLP, 120 SSR, 144 DArT) we used to construct the map. Partners can download the raw data and reconstruct the map by adding new genotyping data, or through different methods and software for better improvement of the Seri/Babax genetic map.
CIMMYT annually distributes improved germplasm developed by its researchers and partners in international nurseries trials and experiments. The High Rainfall Wheat Yield Trial (HRWYT) contains very top-yielding advance lines of spring bread wheat (Triticum aestivum) germplasm adapted to high rainfall, Wheat Mega-environment 2 (ME2HR).
CIMMYT annually distributes improved germplasm developed by its researchers and partners in international nurseries trials and experiments. The High Temperature Wheat Yield Trial (HTWYT) is a replicated yield trial that contains spring bread wheat (Triticum aestivum) germplasm adapted to Mega-environment 1 (ME1) which represents high temperature areas.
CIMMYT annually distributes improved germplasm developed by its researchers and partners in international nurseries trials and experiments. The High Temperature Wheat Yield Trial (HTWYT) is a replicated yield trial that contains spring bread wheat (Triticum aestivum) germplasm adapted to Mega-environment 1 (ME1) which represents high temperature areas.
CIMMYT annually distributes improved germplasm developed by its researchers and partners in international nurseries trials and experiments. The High Temperature Wheat Yield Trial (HTWYT) is a replicated yield trial that contains spring bread wheat (Triticum aestivum) germplasm adapted to Mega-environment 1 (ME1) which represents high temperature areas.
This dataset provides supplementary files for the trials and sites described in the 2011 paper in https://www.nature.com/nclimate/ available at https://dx.doi.org/10.1038/NCLIMATE1043
The average Bangladeshi consumes more than 171kg of rice per year. Despite the is ranked 93rd among 239 countries of the world in terms of the physical size, the country is the 8th largest populace country in terms of the total population which is more than 164 million in 2017. Bangladesh has nonetheless largely achieved rice self-sufficiency. This development has been enabled in part by the rapid proliferation of small-scale irrigation pumps that enabled double rice cropping, as well as by a commercialized and competitive market system in which farmers purchase water from irrigation service providers. Excess groundwater abstraction in areas of high shallow tube-well density and increased fuel costs for pumping have however questioned the sustainability of Bangladesh’s groundwater irrigation economy. To ensure sustainability, cost-saving agronomic methods can be widely deployed aligning with policies, markets, and farmers’ incentives. We consequently studied the different institutions and water-pricing methods for irrigation services that have emerged in Bangladesh, each of which varies in their incentive structure for water conservation, and the level of economic risk involved for farmers and service providers. Using primary data collected from 139 irrigation service providers and 556 client farmers, we empirically examine the structure of irrigation services (hourly, seasonal with/without client pump fuel and crop sharing) and associated market and institutional dimensions. Our findings demonstrate that competition among pump owners, social capital and personal relationships, and economic and agronomic risk perceptions of both pump owners and farmers significantly influence the structure of irrigation service and water pricing method. Greater competition among pump owners increases the likelihood of hourly services and reduces the likelihood of crop-sharing arrangements. Based on these findings, we explore some policy implications for enhancing irrigation services and sustainability in Bangladesh.
The genotypes from the International Bread Wheat Screening Nursery (IBWSN) multiplication trial, which is designed to rapidly assess a large number of advanced generation (F3-F7) lines of spring bread wheat under Mega-environment 1 (ME1) that represents diversity for a wide range of latitudes, climates, day lengths, fertility conditions, water management, and (most importantly) disease conditions, were used for this study.
