scholarly journals Cytological investigations in diploid potato (Solanum spp.)

2016 ◽  
Vol 11 (1) ◽  
pp. 9-13
Author(s):  
Tanuja Buckseth ◽  
M I S Saggoo
Keyword(s):  
Diploid Potato ◽  
Solanum Spp

Cold Sweetening in Diploid Potato: Mapping Quantitative Trait Loci and Candidate Genes

Genetics ◽  
2002 ◽  
Vol 162 (3) ◽  
pp. 1423-1434
Author(s):  
Cristina M Menéndez ◽  
Enrique Ritter ◽  
Ralf Schäfer-Pregl ◽  
Birgit Walkemeier ◽  
Alexandra Kalde ◽  
...  
Keyword(s):  
Candidate Gene ◽  
Cold Storage ◽  
Quantitative Trait ◽  
Metabolic Pathways ◽  
Sugar Content ◽  
Candidate Gene Approach ◽  
Diploid Potato ◽  
Glucose Content ◽  
Gene Markers ◽  
Cold Sweetening

Abstract A candidate gene approach has been used as a first step to identify the molecular basis of quantitative trait variation in potato. Sugar content of tubers upon cold storage was the model trait chosen because the metabolic pathways involved in starch and sugar metabolism are well known and many of the genes have been cloned. Tubers of two F1 populations of diploid potato grown in six environments were evaluated for sugar content after cold storage. The populations were genotyped with RFLP, AFLP, and candidate gene markers. QTL analysis revealed that QTL for glucose, fructose, and sucrose content were located on all potato chromosomes. Most QTL for glucose content mapped to the same positions as QTL for fructose content. QTL explaining >10% of the variability for reducing sugars were located on linkage groups I, III, VII, VIII, IX, and XI. QTL consistent across populations and/or environments were identified. QTL were linked to genes encoding invertase, sucrose synthase 3, sucrose phosphate synthase, ADP-glucose pyrophosphorylase, sucrose transporter 1, and a putative sucrose sensor. The results suggest that allelic variants of enzymes operating in carbohydrate metabolic pathways contribute to the genetic variation in cold sweetening.

scholarly journals Identificación de razas del nematodo de quiste de papa (globodera pallida (stone)) con diferenciales o clones de papa

2018 ◽  
Vol 6 (1) ◽  
pp. 73-80
Author(s):  
Ricardo Piedra Naranjo ◽  
Cristina Vargas Chacón ◽  
Jeannette Avilés Chaves ◽  
Jorge Meckbel Campos
Keyword(s):  
Solanum Tuberosum ◽  
Globodera Pallida ◽  
San Juan ◽  
Para Determinar ◽  
Solanum Spp ◽  
Buenas Prácticas

El estudio se realizó en la localidad de San Juan de Chicuá, provincia de Cartago, a 5 kilómetros del Volcán Irazú, con una altura de 2.800 metros sobre el nivel del mar y a 26 kilómetros al noreste de la provincia de Cartago. Utilizando diferenciales o clones de papa se ejecutó la investigación para determinar razas del nematodo Globodera pallida (Stone) en el cultivo. La identificación de los patotipos se hizo basado en la tasa de reproducción de las distintas poblaciones en una serie standard de clones de Solanum spp. Con una viabilidad de 260 huevos o larvas por quiste, fue inoculado cada diferencial, con un número de 35, 40 y 45 quistes por pote. Se tomó temperatura y humedad de suelo. Los clones de papa o diferenciales utilizados fueron: Floresta (Solanum tuberosum), 800286 (Multidissectum híbrido P55/ 7(H2), 800289 (KTT, 60.21.19), 800290 (GLK 58.1642.4), 800291(VTn 62.33.3), 800944 (65.346.19). Se observó que los clones positivos presentaron reacciones importantes a la raza P3A de Globodera pallida Stone. Los diferenciales o clones 800289, 800290 y 800 291 mostraron resistencia a la plaga. Las razas de esta plaga pueden cambiar por evolución de la misma, al someterse a otras variedades o nuevos huéspedes, sin embargo, el estudio es importante para crear un programa con variedades tolerantes o resistentes y esto contribuye sin duda dentro de elementos para un manejo integrado de la plaga dentro de las buenas prácticas agronómicas del cultivo de papa en Costa Rica.Palabras claves: Biotipo o raza, diferenciales o clones de papa, resistencia o tolerancia

scholarly journals Manipulating genome of diploid potato inbred line Solanumchacoense M6 using selectable marker gene

2020 ◽  
Vol 44 (4) ◽  
pp. 399-407
Author(s):  
Sarbesh Das DANGOL ◽  
İlknur YEL ◽  
Mehmet Emin ÇALIŞKAN ◽  
Allah BAKHSH
Keyword(s):  
Inbred Line ◽  
Selectable Marker ◽  
Marker Gene ◽  
Diploid Potato ◽  
Selectable Marker Gene

Interactions of the Solanum spp. of the Etuberosa group and nine potato-infecting viruses and a viroid

1992 ◽  
Vol 120 (2) ◽  
pp. 301-313 ◽  
Author(s):  
J. P. T. VALKONEN ◽  
G. BRIGNETI ◽  
L. F. SALAZAR ◽  
E. PEHU ◽  
R. W. GIBSON
Keyword(s):  
Solanum Spp
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