PABRA means partnership: Transforming agriculture in Africa together

For two decades, the Pan-Africa Bean Research Alliance (PABRA), a partnership developed and facilitated by the International Center for Tropical Agriculture (CIAT) – a CGIAR Research Center – has fostered a pan-African research and development partnership to strengthen the common bean value chain. Common beans are important food legumes and contribute to the food and nutrition security, income generation and enhances production systems in over 32 countries in sub-Saharan Africa. To achieve food and nutrition security, Africa must participate, promote regional, continental, and global markets, and strengthen key value chains. Our policies need to be deliberately tailored, made conducive and supportive so as to take advantage of opportunities offered by technological development and innovations. Enhancing capacities of different stakeholder cannot be emphasized. With a changing climate, Africa needs to be prepared with mitigation strategies, plans, policies, tools and actions that enhance resilience of our production systems and communities

Genome-wide association mapping for component traits of drought tolerance in dry beans (Phaseolus vulgaris L.)

Understanding the genetic basis of traits of economic importance under drought stressed and well-watered conditions is important in enhancing genetic gains in dry beans (Phaseolus vulgaris L.). This research aims to: (i) identify markers associated with agronomic and physiological traits for drought tolerance and (ii) identify drought-related putative candidate genes within the mapped genomic regions. An andean and middle-american diversity panel (AMDP) comprising of 185 genotypes was screened in the field under drought stressed and well-watered conditions for two successive seasons. Agronomic and physiological traits, viz., days to 50% flowering (DFW), plant height (PH), days to physiological maturity (DPM), grain yield (GYD), 100-seed weight (SW), leaf temperature (LT), leaf chlorophyll content (LCC) and stomatal conductance (SC) were phenotyped. Principal component and association analysis were conducted using the filtered 9370 Diversity Arrays Technology sequencing (DArTseq) markers. The mean PH, GYD, SW, DPM, LCC and SC of the panel was reduced by 12.1, 29.6, 10.3, 12.6, 28.5 and 62.0%, respectively under drought stressed conditions. Population structure analysis revealed two sub-populations, which corresponded to the andean and middle-american gene pools. Markers explained 0.08-0.10, 0.22-0.23, 0.29-0.32, 0.43-0.44, 0.65-0.66 and 0.69-0.70 of the total phenotypic variability (R2) for SC, LT, PH, GYD, SW and DFW, respectively under drought stressed conditions. For well-watered conditions, R2 varied from 0.08 (LT) to 0.70 (DPM). Overall, 68 significant (p < 10-03) marker-trait associations (MTAs) and 22 putative candidate genes were identified across drought stressed and well-watered conditions. Most of the identified genes had known biological functions related to regulating the response to drought stress. The findings provide new insights into the genetic architecture of drought stress tolerance in common bean. The findings also provide potential candidate SNPs and putative genes that can be utilized in gene discovery and marker-assisted breeding for drought tolerance after validation.Bruce Mutari, Julia Sibiya, Admire Shayanowako, Charity Chidzanga, Prince M. Matova, Edmore Gasur

Common Bean variety releases in Africa

The Pan Africa Bean Research Alliance is a network of national agricultural research centers (NARS), and private and public sector institutions that work to deliver better beans with consumer and market preferred traits to farmers. The datasets presented here draw from 17 Sub Saharan countries that are members of PABRA. The dataset on released bean varieties is a collection of 357 bean varieties released by NARS and there characteristics. The dataset on bean varieties and the relationship to constraints provides the 357 bean varieties on the basis of resistance to constraints such as fungal, bacterial, viral, diseases and tolerance to abiotic stresses. There is also a dataset of bean varieties that have been released in more than one country, useful for moving seed from one country to another and facilitating regional trade. The dataset on Niche market traits provides the market defined classifications for bean trade in Sub Saharan Africa as well as varieties that fall into these classifications. The datasets are an update to the 2011 discussion on PABRAs achievement in breeding and delivery of bean varieties in Buruchara et. 2011 in pages 236 and 237 here: http://www.ajol.info/index.php/acsj/article/view/74168 . It is also an update to a follow up to this discussion in Muthoni, R. A., Andrade, R. 2015 on the performance of bean improvement programmes in sub-Saharan Africa from the perspectives of varietal output and adoption in chapter 8. here: http://dx.doi.org/10.1079/9781780644011.0148. The data is extracted from the PABRA M&E database available here ( http://database.pabra-africa.org/?location=breeding)

Degendering Work Time in Comparative Perspective: Alternative Policy Frameworks

Policy initiatives providing for alternative working time arrangements as well as a shortened standard work week have become prevalent in recent years, especially among the highly industrialized countries of northern Europe. We find that despite institutional differences, Germany, France, and Sweden have adopted policies that explicitly or implicitly contribute to the gendering of work time. Increasingly, what differentiates gender roles is not whetherindividuals have a job, but the amount of timespent in paid employment. The expansion of overtime for men and part-time jobs for women reinforces the skewed division of domestic labor and occupational segregation. European unions are acquiescing to work reorganization policies that promote the expansion of both part-time and overtime as long as these policies are coupled with measures facilitating work redistribution to save jobs. Broader visions of work reduction as a means to gender equity have been shunted to the background.work time, European Union, women's employment, part-time work, flexibility, labor market policy,