Seed Today - Q3 2008 - (Page 62) Dead Seeds Do Tell Tales Extracted DNA has significant implications for seed bank management USDA Agricultural Research Service (ARS) scientists in Fort Collins, CO can seemingly make dead seeds “talk.” Although it is one-way communication, plant physiologist Christina Walters and colleagues at the National Center for Genetic Resources Preservation (NCGRP) have found that seeds can reveal genetic information after losing viability. “The evidence that usable DNA can be extracted from seeds that can no longer produce plants has significant implications for seed bank management,” Walters says. Like all genebanks, NCGRP stores genetic materials that researchers use to study the nature, function, and evolution of genes. Since all seeds lose viability in storage, samples that can no longer germinate are often discarded. This new research shows that even low-viability seeds can contain research-quality DNA. Walters and her colleagues examined three sets of seeds ranging in age from one to 135 years to see if they contained enough intact genetic material to reveal genotypic information about the seeds. The scientists even extracted usable DNA from seeds which had been stored in a Georgia attic since the Civil War. “The youngest seeds were in great condition, but even the older seeds had chunks of DNA containing at least 900 base pairs, which will provide enough information to identify a seed’s species and compare it to genetically similar materials,” Walters says. Stable DNA enables researchers to genotype seeds to uncover information about pedigree or genetic diversity. Seeds at the NCGRP from the late 1890s that typify crops grown in North Dakota. (USDA Photo by Stephen Ausmus) Response No. 621 Response No. 622 62 Third Quarter 2008 http://www.pikecreekturf.com http://www.ferrellross.com http://www.ferrellross.com http://www.pikecreekturf.com
Table of Contents Feed for the Digital Edition of Seed Today - Q3 2008 Seed Today - Q3 2008 Contents Editor’s Notes Cover Feature Fred Miller, Ph.D., MMR Genetics Crosbyton Seed Company AOSCA Greg Lowry Floyd Hansmeirer AOSA/SCST According to ASTA Seedsellers, Inc. BinMaster Blake Sieker Ad Index Seed Today - Q3 2008 Seed Today - Q3 2008 - (Page Intro) Seed Today - Q3 2008 - Seed Today - Q3 2008 (Page Cover1) Seed Today - Q3 2008 - Seed Today - Q3 2008 (Page Cover2) Seed Today - Q3 2008 - Contents (Page 3) Seed Today - Q3 2008 - Editor’s Notes (Page 4) Seed Today - Q3 2008 - Editor’s Notes (Page 5) Seed Today - Q3 2008 - Cover Feature (Page 6) Seed Today - Q3 2008 - Cover Feature (Page 7) Seed Today - Q3 2008 - Cover Feature (Page 8) Seed Today - Q3 2008 - Cover Feature (Page 9) Seed Today - Q3 2008 - Fred Miller, Ph.D., MMR Genetics (Page 10) Seed Today - Q3 2008 - Fred Miller, Ph.D., MMR Genetics (Page 11) Seed Today - Q3 2008 - Crosbyton Seed Company (Page 12) Seed Today - Q3 2008 - Crosbyton Seed Company (Page 13) Seed Today - Q3 2008 - Crosbyton Seed Company (Page 14) Seed Today - Q3 2008 - Crosbyton Seed Company (Page 15) Seed Today - Q3 2008 - AOSCA (Page 16) Seed Today - Q3 2008 - AOSCA (Page 17) Seed Today - Q3 2008 - AOSCA (Page 18) Seed Today - Q3 2008 - AOSCA (Page 19) Seed Today - Q3 2008 - Greg Lowry (Page 20) Seed Today - Q3 2008 - Floyd Hansmeirer (Page 21) Seed Today - Q3 2008 - Floyd Hansmeirer (Page 22) Seed Today - Q3 2008 - Floyd Hansmeirer (Page 23) Seed Today - Q3 2008 - AOSA/SCST (Page 24) Seed Today - Q3 2008 - AOSA/SCST (Page 25) Seed Today - Q3 2008 - AOSA/SCST (Page 26) Seed Today - Q3 2008 - AOSA/SCST (Page 27) Seed Today - Q3 2008 - According to ASTA (Page 28) Seed Today - Q3 2008 - According to ASTA (Page 29) Seed Today - Q3 2008 - According to ASTA (Page 30) Seed Today - Q3 2008 - According to ASTA (Page 31) Seed Today - Q3 2008 - According to ASTA (Page 32) Seed Today - Q3 2008 - According to ASTA (Page 33) Seed Today - Q3 2008 - According to ASTA (Page 34) Seed Today - Q3 2008 - According to ASTA (Page 35) Seed Today - Q3 2008 - According to ASTA (Page 36) Seed Today - Q3 2008 - According to ASTA (Page 37) Seed Today - Q3 2008 - According to ASTA (Page 38) Seed Today - Q3 2008 - According to ASTA (Page 39) Seed Today - Q3 2008 - According to ASTA (Page 40) Seed Today - Q3 2008 - According to ASTA (Page 41) Seed Today - Q3 2008 - According to ASTA (Page 42) Seed Today - Q3 2008 - According to ASTA (Page 43) Seed Today - Q3 2008 - According to ASTA (Page 44) Seed Today - Q3 2008 - According to ASTA (Page 45) Seed Today - Q3 2008 - According to ASTA (Page 46) Seed Today - Q3 2008 - According to ASTA (Page 47) Seed Today - Q3 2008 - According to ASTA (Page 48) Seed Today - Q3 2008 - According to ASTA (Page 49) Seed Today - Q3 2008 - According to ASTA (Page 50) Seed Today - Q3 2008 - According to ASTA (Page 51) Seed Today - Q3 2008 - According to ASTA (Page 52) Seed Today - Q3 2008 - According to ASTA (Page 53) Seed Today - Q3 2008 - According to ASTA (Page 54) Seed Today - Q3 2008 - According to ASTA (Page 55) Seed Today - Q3 2008 - According to ASTA (Page 56) Seed Today - Q3 2008 - According to ASTA (Page 57) Seed Today - Q3 2008 - According to ASTA (Page 58) Seed Today - Q3 2008 - According to ASTA (Page 59) Seed Today - Q3 2008 - Seedsellers, Inc. (Page 60) Seed Today - Q3 2008 - BinMaster (Page 61) Seed Today - Q3 2008 - BinMaster (Page 62) Seed Today - Q3 2008 - BinMaster (Page 63) Seed Today - Q3 2008 - BinMaster (Page 64) Seed Today - Q3 2008 - BinMaster (Page 65) Seed Today - Q3 2008 - BinMaster (Page 66) Seed Today - Q3 2008 - BinMaster (Page 67) Seed Today - Q3 2008 - BinMaster (Page 68) Seed Today - Q3 2008 - BinMaster (Page 69) Seed Today - Q3 2008 - BinMaster (Page 70) Seed Today - Q3 2008 - BinMaster (Page 71) Seed Today - Q3 2008 - BinMaster (Page 72) Seed Today - Q3 2008 - BinMaster (Page 73) Seed Today - Q3 2008 - Blake Sieker (Page 74) Seed Today - Q3 2008 - Blake Sieker (Page 75) Seed Today - Q3 2008 - Blake Sieker (Page 76) Seed Today - Q3 2008 - Blake Sieker (Page 77) Seed Today - Q3 2008 - Blake Sieker (Page 78) Seed Today - Q3 2008 - Blake Sieker (Page 79) Seed Today - Q3 2008 - Blake Sieker (Page 80) Seed Today - Q3 2008 - Blake Sieker (Page 81) Seed Today - Q3 2008 - Blake Sieker (Page 82) Seed Today - Q3 2008 - Blake Sieker (Page 83) Seed Today - Q3 2008 - Blake Sieker (Page 84) Seed Today - Q3 2008 - Blake Sieker (Page 85) Seed Today - Q3 2008 - Blake Sieker (Page 86) Seed Today - Q3 2008 - Blake Sieker (Page 87) Seed Today - Q3 2008 - Blake Sieker (Page 88) Seed Today - Q3 2008 - Blake Sieker (Page 89) Seed Today - Q3 2008 - Blake Sieker (Page 90) Seed Today - Q3 2008 - Ad Index (Page 91) Seed Today - Q3 2008 - Ad Index (Page Cover3) Seed Today - Q3 2008 - Ad Index (Page Cover4)
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