Publications

Geographic and genetic population differentiation of the Amazonian chocolate tree - (Peer Reviewed Journal)

(07-Jul-08)

SSCP markers provide a useful alternative to microsatellites in genotyping and estimating genetic diversity in populations and germplasm collections of plant specialty crops. - (Peer Reviewed Journal)

(24-Apr-08)

Genetic diversity and structure of farm and genebank accessions of cacao (Theobroma cacao L.) in Cameroon revealed by microsatellite markers - (Peer Reviewed Journal)

Efombagan, I.B., Motamayor, J.C., Sounigo, O., Eskes, A.B., Nyasse, S., Cilas, C., Schnell Ii, R.J., Manzanares-Dauleux, M., Kolesnikova-Allen, M. 2008. Genetic diversity and structure of farm and genebank accessions of cacao (Theobroma cacao L.) in Cameroon revealed by microsatellite markers. Tree Genetics & Genomics. DOI 10.1007/s11295-008-0155-z

SSCP markers provide a useful alternative to microsatellites in genotyping and estimating genetic diversity in populations and germplasm collections of specialty crops - (Abstract)

Kuhn, D.N., Meerow, A.W., Borrone, J.W., Motamayor, J.C., Schnell Ii, R.J. 2008. Sscp markers provide a useful alternative to microsatellites in genotyping and estimating genetic diversity in populations and germplasm collections of specialty crops. Plant and Animal Genome Conference.

A composite linkage map from the combination of three crosses made from commercial clones of cacao, T. cacao L. - (Peer Reviewed Journal)

Brown, J.S., Sautter, R.T., Tondo, C.T., Borrone, J.W., Kuhn, D.N., Motamayor, J.C., Schnell II, R.J. 2008. A composite linkage map from the combination of three crosses made from commercial clones of cacao, T. cacao L.. Tropical Plant Biology. DOI 10.1007/s12042-008-9011-4

Development of marker assisted selection program for cacao - (Peer Reviewed Journal)

Schnell Ii, R.J., Kuhn, D.N., Brown, J.S., Tondo, C.T., Motamayor, J.C. 2007. Development of marker assisted selection program for cacao. Journal of Phytopathology. 97(12):1664-1669.

Integrating genomics into an applied cacao breeding program. - (Other)

Schnell Ii, R.J., Motomayor, J.C., Brown, J.S., Kuhn, D.N., Olano, C.T., Borrone, J.W., Ploetz, R., Rosenquist, E. 2007. Integrating genomics into an applied cacao breeding program.. Meeting Abstract.

Integrating genomics into an applied cacao breeding program. - (Other)

Schnell II, R.J., Motomayor, J.C., Brown, J.S., Kuhn, D.N., Olano, C.T., Borrone, J.W., Ploetz, R., Rosenquist, E. 2007. Integrating genomics into an applied cacao breeding program.. Meeting Abstract.

Mapping QTL for resistance to frosty pod and black pod diseases, and for horticultural traits in Theobroma cacao L. - (Peer Reviewed Journal)

Brown, J.S., Phillips-Mora, W., Power, E.J., Krol, C.A., Cervantesmartinez, C., Motamayor, J., Schnell II, R.J. 2007. Mapping QTL for resistance to frosty pod and black pod diseases, and for horticultural traits in Theobroma cacao L.. Crop Science. 47:1851-1858.

Cacao genomics and the development of a marker-assisted-selection program for cacao - (Abstract)

(13-Jan-07)

Genetic diversity in cocoa (Theobroma cacao, L.) germplasm collection from Ghana - (Peer Reviewed Journal)

Opoku, S.Y., Bhattacharjee, R., Kolesnikova-Allen, M., Motamayor, J.C., Schnell Ii, R.J., Ingelbrecht, I., Enu-Kwesi, L., Adu-Ampomah, Y. 2007. Genetic diversity in cocoa (Theobroma cacao, L.) germplasm collection from Ghana. Journal of Crop Improvement. Vol. 20(1/2) (#39/40)p.73-87.

Development of molecular genetic markers from a cDNA subtraction library of Frosty Pod inoculated cacao - (Proceedings/Symposium)

Kuhn, D.N., Macarthur, H.C., Borrone, J.W., Schnell Ii, R.J., Brown, J.S., Johnson, E., Phillips-Mora, W. 2006. Development of molecular genetic markers from a cDNA subtraction library of Frosty Pod inoculated cacao. Proceedings of the XVth International Cacao Conference.

Development of a high throughput SNP assay for marker-assisted breeding of Theobroma cacao in cacao producing countries - (Abstract)

(29-Sep-06)

Microsatellite Markers developed from Theobroma Cacao L. Expressed Sequence Tags - (Peer Reviewed Journal)

Borrone, J.W., Brown, J.S., Kuhn, D.N., Schnell II, R.J. 2007. Microsatellite Markers developed from Theobroma Cacao L. Expressed Sequence Tags. Molecular Ecology Notes.7:236-239.

Microsatellite-containing expressed sequence tags for genetic mapping and genotyping Theobroma cacao - (Proceedings/Symposium)

Borrone, J.W., Schnell Ii, R.J., Brown, J.S., Kuhn, D.N. 2007. Microsatellite-containing expressed sequence tags for genetic mapping and genotyping Theobroma cacao. Proceedings of the XVth International Cacao Conference.

CURRENT CHALLENGES OF TROPICAL TREE CROP IMPROVEMENT: INTEGRATING GENOMICS INTO AN APPLIED CACAO BREEDING PROGRAM - (Peer Reviewed Journal)

Schnell II, R.J., Brown, J.S., Kuhn, D.N., Cervantesmartinez, C., Borrone, J.W., Olano, C.T., Motamayor, J.C., Phillips, W., Johnson, E., Monteverde-Penso, E.J., Amores, F., Lopes, U. 2007. Current challenges of tropical tree crop improvement: integrating genomics into an applied cacao breeding program. Acta Horticulturae: Proc IS on biotechnology of temperate fruit crops and tropical species. 738:p129-144.

PRELIMINARY QTL MAPPING RESULTS TO FROSTY POD AND HORTICULTURAL TRAITS - (Proceedings/Symposium)

(15-Jun-06)

Mapping QTLs in breeding populations of cacao (Theobroma cacao L.) - (Proceedings/Symposium)

(15-Jun-06)

IDENTIFICATION OF CACAO TIR-NBS-LRR RESISTANCE GENE ANALOGS AND THEIR USE AS GENETIC MARKERS - (Peer Reviewed Journal)

Kuhn, D.N., Narasimhan, G., Nakamura, K., Brown, J.S., Schnell II, R.J., Meerow, A.W. 2006. Identification of cacao tir-nbs-lrr resistance gene analogs and their use as genetic markers. Journal of the American Society for Horticultural Science.131(6):806-813.

Mapping QTLs for Witches'Broom (Crinipellis perniciosa) Resistance in cacao (Theobroma cacao L.) - (Peer Reviewed Journal)

Faleiro, F.G., Queiroz, V.T., Lopes, U.V., Guimaraes, C.T., Pires, J.L., Yamada, M.M., Araujo, I.S., Pereira, M.G., Schnell Ii, R.J., De Souza Filho, G.A. 2006. Mapping QTLs for Witches'Broom (Crinipellis perniciosa) Resistance in cacao (Theobroma cacao L.). Euphytica. 149:227-235

COMBINING ABILITY FOR DISEASE RESISTANCE, YIELD, AND HORTICULTURAL TRAITS FOR CACAO (THEOBROMA CACAO L.) CLONES - (Peer Reviewed Journal)

Cervantes-Martinez, C., Phillips-Mora, W., Brown, J.S., Motamayor, J.C., Takrama, J.F., Schnell II, R.J. 2006. Combining ability for disease resistance, yield, and horticultural traits for cacao (Theobroma cacao L.) clones. Journal of the American Society for Horticultural Science. 131(2):231-241.

A COMPUTER SIMULATION STUDY ON THE NUMBER OF LOCI TO AND TREES REQUIRED TO ESTIMATE GENETIC VARIABILITY IN CACAO (THEBROMOA CACAO L.) - (Peer Reviewed Journal)

Cervantes-Martinez, C., Brown, J.S., Motamayor, J.C., Zhang, D., Schnell II, R.J. 2006. A computer simulation study on the number of loci and trees required to estimate genetic variability in cacao (Thebromoa cacao L.). Tree Genetics & Genomics.

DETERMINATION OF OFF-TYPES IN A CACAO BREEDING PROGRAM USING MICROSATELLITES - (Trade Journal)

Takrama, J.F., Cervantes-Martinez, C.T., Phillips-Mora, W., Brown, J.S., Motamayor, J., Schnell II, R.J. 2005. Determination of off-types in a cacao breeding program using microsatellites. Ingenic Newsletter. 10:2-8.

CAN WE SELECT FOR SHORTER CACAO PLANTS? - (Trade Journal)

Monteverde-Penso, E.J., Phillips, W., Machado, R., Brown, J.S., Schnell II, R.J., Motamayor, J.C. 2005. Can we select for shorter cacao plants?. Ingenic Newsletter. 10:16-19.

WHY WOULD BE BREED CACAO IN FLORIDA? - (Trade Journal)

Schnell II, R.J., Brown, J.S., Kuhn, D.N., Cervantes-Martinez, C.T., Olano, C.T., Motamayor, J. 2005. Why would be breed cacao in Florida?. Proceedings of Florida State Horticultural Society. 118:189-191.

Potential phylogenetic utility of WRKY gene family members - (Abstract)

Borrone, J.W., Meerow, A.W., Kuhn, D.N., Schnell Ii, R.J. 2006. Potential phylogenetic utility of WRKY gene family members. Plant and Animal Genome VX Conference Abstracts.

Single strand conformation polymorphism analysis of candidate genes for reliable identification of alleles by capillary array electrophoresis. - (Peer Reviewed Journal)

Kuhn, D.N., Borrone, J.W., Meerow, A.W., Motamayor, J., Brown, J.S., Schnell Ii, R.J. 2005. Single strand conformation polymorthism analysis of candidate genes for reliable identification of alleles by capillary array electrophoresis. Electrophoresis. 26:112-125.

RESISTANCE GENE MAPPING FOR WITCHES' BROOM DISEASE IN THEOBROMA CACAO L. IN AN F2 POPULATION USING SSR MARKERS AND CANDIDATE GENES. - (Peer Reviewed Journal)

Brown, J.S., Schnell II, R.J., Motamayor, J.C., Lopes, U., Kuhn, D.N. 2005. Resistance gene mapping for witches' broom disease in Theobroma cacao L. in an f2 population using ssr markers and candidate genes. Journal of the American Society for Horticultural Science. 130(3):366-373.

ANALYSIS OF MOLECULAR DIVERSITY IN CRINIPELLIS PERNICIOSA WITH AFLP MARKERS - (Peer Reviewed Journal)

Ploetz, R.C., Schnell II, R.J., Ying, Z., Zheng, Q., Olano, C.T., Johnson, E. 2005. Analysis of molecular diversity in Crinipellis perniciosa with AFLP markers. European Journal of Plant Pathology. 111/4, pp. 317-326.

RETROSPECTIVE DETERMINATION OF THE PARENTAL POPULATION OF SUPERIOR THEOBROMA CACAO L. SEEDLINGS AND ASSOCIATION OF MICROSATELLITE ALLELES WITH PRODUCTIVITY - (Peer Reviewed Journal)

Schnell II, R.J., Olano, C.T., Brown, J.S., Meerow, A.W., Meneres, T., Nagai, C., Motamayor, J.C. 2005. Retrospective determination of the parental population of superior Theobroma cacao L. seedlings and association of microsatellite alleles with productivity. Journal of the American Society for Horticultural Science. 130(2):181-190.

SINGLE STRAND CONFORMATION POLYMORPHISM ANALYSIS OF CANDIDATE GENES FOR RELIABLE IDENTIFICATION OF ALLELES BY CAPILLARY ARRAY ELECTROPHORESIS. - (Peer Reviewed Journal)

Kuhn, D.N., Borrone, J., Meerow, A.W., Motamayor, J., Brown, J.S., Schnell II, R.J. 2005. Single strand conformation polymorphism analysis of candidate genes for reliable identification of alleles by capillary array electrophoresis. Electrophoresis. 26:112-125.

FREQUENCY OF OFF-TYPE PROGENY AMONG THE ORIGINAL ICS1 X SCA6 RECIPROCAL FAMILIES MADE FOR SELECTION FOR DISEASE RESISTANCE IN TRINIDAD - (Trade Journal)

Schnell II, R.J., Heath, M., Johnson, E.S., Brown, J.S., Olano, C.T., Motamayor, J. 2004. Frequency of off-type progeny among the original ICS1 x SCA6 reciprocal families made for selection for disease resistance in Trinidad. Ingenic Newsletter. 9:34-39.

FIELD GUIDE TO THE ICS CLONES OF TRINIDAD - (Other)

Johnson, E., Bekele, F., Schnell II, R.J. 2004. Field guide to the ICS clones of Trinidad. Technical Series/CATIE: no. 54 32p.

GERMPLASM AND GENOME RESOURCES IN THEOBROMA CACAO: CURRENT CHALLENGES OF TROPICAL TREE CROP BREEDING - (Proceedings/Symposium)

Schnell II, R.J. 2004. Germplasm and genome resources in theobroma cacao: current challenges of tropical tree crop breeding. American Association for the Advancement of Science Meeting.

CAN MODERN PLANT SCIENCE DRIVE THE AGRO-ECOLOGY OF AN ANCIENT CROP? - (Proceedings/Symposium)

Schnell II, R.J. 2004. Can modern plant science drive the agro-ecology of an ancient crop? Proceedings of the National Academy of Sciences.

A HAPLOTYPE-BASED METHOD FOR QTL MAPPING OF F1 POPULATIONS IN OUTBRED PLANT SPECIES. - (Peer Reviewed Journal)

Cervantes-Martinez, C., Brown, J.S. 2004. A haplotype-based method for QTL mapping of F1 populations in outbred plant species. Crop Science. 44:1572-1583.

POPULATION STRUCTURE OF THE WITCHES' BROOM PATHOGEN OF CACAO IN TRINIDAD AND TOBAGO. - (Proceedings/Symposium)

(20-Oct-03)

A PRELIMINARY GENOMIC MAP BASED ON SSR MARKERS, RESISTANCE GENE HOMOLOGUES, AND STRESS-RELATED WRKY GENES IN AN F2 POPULATION OF T. CACAO L. - (Peer Reviewed Journal)

Brown, J.S., Kuhn, D., Motamayor, J.C., Borrone, J., Lopes, U., Schnell II, R.J. 2003. A preliminary genomic map based on SSR markers, Resistance Gene Homologues, and Stress-related WRKY genes in an F2 population of T. cacao L. Proceedings of the International Cocoa Producer's Conference.