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World Congress on Root and Tuber Crops Nanning, Guangxi, China, January 18-22, 2016
n Importance of sweetpotato n Advances in sweetpotato breeding SSA n Genomic tools for sweetpotato improvement
project (GT4SP) n Way forward
Source: FAOSTAT3.FAO.ORG (March 2015)
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Yield
Sweetpotato for Profit and Health Initiative a multi-partner, multi-donor initiative that seeks to reduce child under-nutrition and improve smallholder incomes in 10 million African families by 2020 through the effective production and expanded use of sweetpotato.
The lead agency of SASHA and the SPHI is the International Potato Center, Lima, Peru.
The GT4SP project is leading the effort to develop next generation breeding tools to support crop improvement in SASHA and other projects.
The Sweetpotato Action for Security and Health in Africa
n The importance and potential of SP is becoming widely recognized across the globe.
n Many public and private organizations recognize the superior nutritional value in SP compared to many other staple crops and investments are increasing.
n SASHA “1” has been very successful – since 2009, breeding programs (9), released 53 new varieties (31orange-fleshed), 3 regional Sweetpotato Support Platforms, near infrared spectroscopy (NIRS) technology introduced, seed systems, virus studies, value-added Proof of concept/delivery system sub-projects
n SASHA “2” and Sweetpotato for Profit and Health Initiative (SPHI) - significant traction and new partners. q See http://sweetpotatoknowledge.org/
In short…..A lot of people are more interested in sweetpotato than ever before!!!
However….genomic resources for sweetpotato are noticeably
lacking!!
An ambi(ous project to sequence sweetpotato and develop modern breeding tools for a food crop that sustains million of people in SSA. Collaborators: Boyce Thompson Institute (BTI) at Cornell, Michigan State University (MSU); University of Queensland (UQ), Australia; CIP, Peru, Uganda, Ghana; BioSciences E &Central Africa (BecA), Kenya; National Crops Resources Research Institute (NaCRRI), Uganda; Crops Res. Institute, Ghana,
Start-Up, San Diego Jan. 2015
1st Annual Mtg. San Diego, Jan. 2016
I. setosa I. nil
I. umbraticola I. ramosissima I. littoralis
I. xleucantha
I. tenuissima I. lacunosa I. grandifolia I. cynanchifolia
I. tiliacea I. cordatoriloba
I. tabascana
I. triloba
I. trifida
I. batatas
The strategy for sweetpotato genome sequencing Sequence the closely related wild ancestors that are diploid and homozygous
(Rajapakse et al. Mol Phylogenet Evol 2004)
• SweetpotatoBase.org website and database established (BTI) integrate database to manage genotyping and phenotyping data
• Project website http://sweetpotatogenomics.cals.ncsu.edu
• Diploid F1 mapping population (M9 x M19) derived from two heterozygous I. trifida genotypes
• 8x8 Pop A x Pop B Diversity Panel of 16 sweetpotato parents from two distinct SSR-defined diversity at CIP-BecA for in vitro maintenance
• Two 6x I. batatas populations have been separately developed at CIP-Lima and NaCRRI.
• NCSU, UQB and CIP groups have begun work to develop SNP calling, phasing, imputation and linkage mapping algorithms for polyploids.
• Capacity building efforts begun at BecA.
Acknowledgment
Boyce Thompson Institute – Cornell University
Dr. Zhangjun FeiHonghe SunDr. Chen JiaoMingyue Zhang
Dr. Joyce Van EckPatricia Keen
Michigan State UniversityDr. Robin BuellJohn Hamilton
North Carolina State UniversityDr. Craig Yencho
Dr. Qinghe CaoXuzhou Sweetpotato Research Institute
University of California DavisDr. Ming-Cheng LuoDr. Tingting Zhu
Dr. Awais Khan Dr. Jan KreuzeRosario Herrera
International potato center
Think and Do ncsu.edu
For more information see: SweetpotatoGenomics.CALS.NCSU.edu
Thank you