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A genetic linkage map of cassava has been constructed with 132 RFLPs, 30 RAPDs, 3 microsatellites, and 3 isoenzyme markers segregating from the heterozygous female parent of an intraspecific cross. The F1 cross was made between ‘TMS 30572’ and ‘CM?2177-2’, elite cassava cultivars from Nigeria and...


Fregene, Martin A.Angel, F.Gómez, R.Rodríguez, F.Chavarriaga Aguirre, PaulRoca, William M.Tohme, Joseph M.Bonierbale, Merideth W.[A molecular genetic map of cassava (Manihot esculenta Crantz)]A molecular genetic map of cassava (Manihot esculenta Crantz)

A procedure based on acid polyacrylamide gel electrophoresis (acid PAGE) has been described. Resolution of phaseolin bands appears to be relatively superior to that obtained with basic PAGE system. The procedure discriminates S, T, C, M and B types of phaseolins; S, T and C have been reported pre...


Hussain, A.Espinel, MTRoca, William M.Bushhuk, W[Acid PAGE procedure for detection of phaseolins in field beans (Phaseolus vulgaris L.)]Acid PAGE procedure for detection of phaseolins in field beans (Phaseolus vulgaris L.)

The Musa germplasm bank established in Colombia has accessions tolerant to Yellow Sigatoka and is located at over 1310 meters above sea level. This germplasm has been characterized using morphological descriptors. However it is has been difficult to identify some accessions due to mutations and e...


Sánchez, InésGaviria Arias, DuberneyGallego Sánchez, Gerardo J.Fajardo, DiegoValencia Montoya, Jorge AlbertoLobo Arias, MarioTohme, Joseph M.Roca, William M.[Caracterización molecular para el manejo de la colección colombiana de musaceas]Caracterización molecular para el manejo de la colección colombiana de musaceas
Singh, Shree P.Debouck, Daniel G.Roca, William M.[Interspecific hybridization between Phaseolus vulgaris L. and P. parvifolius Freytag]Interspecific hybridization between Phaseolus vulgaris L. and P. parvifolius Freytag
Thro, Ann MarieBeachy, Roger N.Bonierbale, Merideth W.Fauquet, Claude M.Henry, GuyHenshaw, Graham G.Hughes, Monica A.Kawano, KazuoRaemakers, C.J.J.M.Roca, William M.Sch"pke, C.Taylor, Nigel J.Visser, Richard G.F.[International research on biotechnology of cassava (tapioca, Manihot esculenta Crantz) and its relevance to Southeast Asian economies: a cassava biotechnology network review]International research on biotechnology of cassava (tapioca, Manihot esculenta Crantz) and its relevance to Southeast Asian economies: a cassava biotechnology network review
Singh, Shree P.Debouck, Daniel G.Roca, William M.[Broadening the genetic base of common bean cultivars]Broadening the genetic base of common bean cultivars

The value of intra- and interracial populations in common bean (Phaseolus vulgaris L.) needs to be determined in order to create useful genetic variation for maximizing gains from selection, broadening the genetic base of commercial cultivars, and making efficient use of available resources. Five...


Welsh, WBushuk, WRoca, William M.Singh, Shree P.[Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.]Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.

Shoot-tips and somatic embryos are the explants of choice for the in vitro long-term storage of ex situ plant genetic resources in liquid nitrogen. Cryopreservation of organized structures has significantly progressed, especially for species of tropical origin, with the development of several vit...


González Amao, M.T.Panta, A.Roca, William M.Escobar Pérez, Roosevelt H.Engelmann, F.[Development and large scale application of cryopreservation techniques for shoot and somatic embryo cultures of tropical crops]Development and large scale application of cryopreservation techniques for shoot and somatic embryo cultures of tropical crops

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