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| Mestanza,Camilo; Riegel,Ricardo; Silva,Herman; Vásquez,Santiago C. |
| Background Currently, the technology called Clearfield® is used in the development of crops resistant to herbicides that inhibit the enzyme acetohydroxy acid synthase (AHAS, EC 2.2.1.6). AHAS is the first enzyme of the biosynthetic pathway that produces the branched-chain of the essential amino acids valine, leucine, and isoleucine. Therefore, multiple copies of the AHAS gene might be of interest for breeding programs targeting herbicide resistance. In this work, the characterization of the AHAS gene was accomplished for the Chenopodium quinoa Regalona-Baer cultivar. Cloning, sequencing, and Southern blotting were conducted to determine the number of gene copies. Results The presence of multiple copies of the AHAS gene as has been shown previously in... |
| Tipo: Journal article |
Palavras-chave: Acetohydroxyacid synthase; Acetolactate synthase; Chenopodium quinoa; Homeologous pairing; Gene duplication. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600002 |
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| Muñoz,Manuel; Riegel,Ricardo; Seemann,Peter; Peñailillo,Patricio; Schiappacasse,Flavia; Núñez,José. |
| La taxonomía de los géneros chilenos de Amaryllidaceae es confusa, persistiendo problemas taxonómicos tanto a nivel de géneros como de especies. Actualmente existe controversia acerca de la correcta clasificación de especies hasta ahora asignadas a Rhodophiala C.Presl. A través del estudio de aspectos morfológicos, recientemente se ha sugerido la rehabilitación del género Rhodolirium Phil., donde Rhodolirium montanum Phil. es considerada como especie tipo. Esta especie ha sido denominada Rhodophiala rhodolirion (Baker) Traub en las clasificaciones tradicionales. Dado que los datos morfológicos han provisto información limitada y ambigua en la clasificación de las Amarilidáceas chilenas, este trabajo evalúa la pertinencia de formalizar la rehabilitación del... |
| Tipo: Journal article |
Palavras-chave: Rhodophiala; Rhodolirium montanum; Amaryllidaceae; ITS; Cariotipo. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432011000100005 |
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| Arismendi,Nolberto; Carrillo,Roberto; Andrade,Nancy; Riegel,Ricardo; Rojas,Eladio. |
| Las trampas pegajosas de colores son una de las principales alternativas en la captura de insectos vectores, debido a su bajo costo y su fácil implementación. El objetivo fue comparar las preferencias a los colores y la altura de colocación de trampas para los posibles cicadélidos vectores de fitopatógenos. Trampas pegajosas amarillas y verdes fueron colocadas en plantas de Gaultheria phillyreifolia a dos distintas alturas. Se diferenciaron 17 especies de cicadélidos, siendo Ribautiana tenerrima Herrich-Shäffer (49%), Carelmapu ramosi Linnavuori & DeLong, Carelmapu aureonitens Linnavuori (33 y 5%), Atanus sp. (6%) las especies más comunes. Todas estas especies se vieron significativamente atraídas por trampas de color amarillo. Ribautiana tenerrima... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicharrita; Carelmapu ramosi; Trampa pegajosa amarilla; Arbusto nativo. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000600008 |
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| von Baer,Erik; von Baer,Ingrid; Riegel,Ricardo. |
| The expansion of white lupin (Lupinus albus L.) cultivation in Chile is subject to the availability of cultivars presenting high yield potential, tolerance to the main fungal diseases and homogeneous ripening. In response to these requirements, a new cultivar has been developed and registered as Liapec->1, commercially registered as Pecosa-Baer. This new cultivar has determined bushy growth habit. Its flowering period is concentrated in approximately 40 days, less than the 77 days of cv. Rumbo-Baer. This trait allows it to reach harvest without heterogeneity problems. The seed is speckled, flat and medium-sized (370 g/1000 grains aprox.). The kernels are sweet and have a high protein content of around 41% (dry matter basis). In field assays,... |
| Tipo: Journal article |
Palavras-chave: Cultivar. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400013 |
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| Muñoz,Manuel; Seemann,Peter; Jara,Gloria; Riegel,Ricardo. |
| Rhodophiala C. Presl (Amaryllidaceae) is a genus of attractive flowering geophytes native to South America. They have ornamental value, but most species are little known and have conservation problems. The objective of this study was to optimize a micropropagation process to support the use and preservation of three Chilean native species, R. montana (Phil.) Traub, R. splendens (Rengifo) Traub., and R. ananuca (Phil.) Traub. The research evaluated the feasibility of implementing liquid medium culture and assessed the influence of different tissue culture systems on the shoot production and biomass increment of small bulbs. Three experiments were carried out. The first one determined the influences of flask size and volume of media; the second compared... |
| Tipo: Journal article |
Palavras-chave: TIS; Liquid culture; Micropropagation; Acclimatization. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400014 |
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