in dealing with climate change Overall warming plus volatility high and low Chilling prospect Fallplanted barley and climate change Use incident precipitation and less irrigation Avoid heat stress and summer diseases ID: 1043055
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1. The critical importance of chill in dealing with climate change
2. Overall warming plus volatility – high and lowChilling prospect
3. Fall-planted barley and climate changeUse incident precipitation and less irrigationAvoid heat stress and summer diseases~25% higher yield
4. Volatility and The lows
5. Winter survivalLow temperature tolerance Induced response: No chilling, no LTTA vegetative state trait: Be chill Vernalization sensitivity Maintain a vegetative state trait until sufficient cold units received: chilling requirementOld school insurance trashed by climate change: a premature vegetative to reproductive transition – the Big Chill
6. Winter survivalShort day photoperiod sensitivity Maintain a vegetative state trait until daylength > ~ 10 hrs: Be chillEffective insurance against climate change-induced low temperature spikes
7. The genesLow temperature tolerance FR-H1, FR-H2, FR-H3Vernalization sensitivity VRN-H1, VRN-H2, VRN-H3Short day photoperiod sensitivity PPD-H2
8. Prospecting for more genesTCAP-2,6-LTT 882WS: 2 years worldwideVS: Greenhouse9K genotypesAllele-specific assays AMBA-2-LTT382WS: 2 years USAVS: Greenhouse50K genotypesAllele-specific assays Best WS 2, 6 X2-row maltingDoubled haploids Deploying the new finds
9. TCAP-LTTThe finds: GWAS Winter survival Vernalization sensitivity
10. TCAP-2,6-LTTThe finds: Genetic diversity tree for WS top 5%I 61%II 59%III 58%IV 60%V 62%VI 65%VII 59%
11. TCAP-2,6-LTTThe finds: Alleles at key loci for top 5% for WSFacultative
12. AMBA-2-LTTThe finds: GWAS Winter survival, 2018 - Ithaca, NY Vernalization sensitivity – greenhouse PPD-H2VRN-H2VRN-H1
13. AMBA-2-LTTThe finds: Genetic diversity tree for WS top 5%PedigreeGroupAdmire-1 (DFG)/DH1300041Antelope/DH1300042KWS Scala/VA11B-1433MOB2301/DH10.10444MOB2566/SC859425MOB475/DH10.10446NB10425/KWS Scala7NB10440/DH1202938Violetta/VA11B-141993%96%96%96%95%95%Full Pint 1%Thunder 65%DH130910 70%
14. The facultative option Hard-wired for low temperature tolerance and short-day sensitivityNo vernalization sensitivity The option to fall-plant and/or spring-plant the same varietyReduces risk Maximizes opportunities Streamlines seed production and end-use
15. The facultative option Hard-wired for low temperature tolerance and short-day sensitivityNo vernalization sensitivity The option to fall-plant and/or spring-plant the same varietyTake precautionary measures to maximize genetic diversity, or else….the green bridge brigs on
16. Genetics is an essential piece of the puzzleBut don’t forget agronomy and crop insurance Maximize residue on soil surface; deep furrowsCreate micro-climate, trap snow, protect from windRMA is there
17. AcknowledgementsTCAP-2,6-LTTThe network, Maria Munoz-Amatriain, and Dustin Herb, USDA-NIFAAMBA-2-LTTThe network, Javier Vasquez Hernandez, AMBA, Sierra Nevada BrewingOSU Barley World Project Past and present