TY - JOUR
T1 - Evolution of wild cereals during 28 years of global warming in Israel
AU - Nevo, Eviatar
AU - Fu, Yong Bi
AU - Pavlicek, Tomas
AU - Khalifa, Souad
AU - Tavasi, Mordechai
AU - Beiles, Avigdor
PY - 2012/2/28
Y1 - 2012/2/28
N2 - Climate change is a major environmental stress threatening bio-diversity andhuman civilization. The best hope to secure staple food for humans and animal feed by future crop improvement depends on wild progenitors. We examined 10 wild emmer wheat (Triticum dicoccoides Koern.) populations and 10 wild barley (Hordeum spontaneum K. Koch) populations in Israel, sampling them in 1980 and again in 2008, and performed phenotypic and genotypic analyses on the collected samples. We witnessed the profound adaptive changes of these wild cereals in Israel over the last 28 y in flowering time and simple sequence repeat allelic turnover. The revealed evolutionary changes imply unrealized risks present in genetic resources for crop improvement and human food production.
AB - Climate change is a major environmental stress threatening bio-diversity andhuman civilization. The best hope to secure staple food for humans and animal feed by future crop improvement depends on wild progenitors. We examined 10 wild emmer wheat (Triticum dicoccoides Koern.) populations and 10 wild barley (Hordeum spontaneum K. Koch) populations in Israel, sampling them in 1980 and again in 2008, and performed phenotypic and genotypic analyses on the collected samples. We witnessed the profound adaptive changes of these wild cereals in Israel over the last 28 y in flowering time and simple sequence repeat allelic turnover. The revealed evolutionary changes imply unrealized risks present in genetic resources for crop improvement and human food production.
KW - Climate warming
KW - Phenotypic and genotypic diversity
KW - Plant genetic resources
UR - http://www.scopus.com/inward/record.url?scp=84857404943&partnerID=8YFLogxK
U2 - 10.1073/pnas.1121411109
DO - 10.1073/pnas.1121411109
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C2 - 22334646
AN - SCOPUS:84857404943
SN - 0027-8424
VL - 109
SP - 3412
EP - 3415
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 9
ER -