Genetic Diversity in Argentine Andean Potatoes by Means of Functional Markers     

Marcelo Nicolás Monte  María Florencia Rey Burusco  Martín Federico Carboni  Martín Alfredo Castellote  Sofía Sucar  Natalia Sigrid Norero  Silvana Lorena Colman  Gabriela Alejandra Massa  Mónica Liliana Colavita  Sergio Enrique Feingold 《American Journal of Potato Research》2018,95(3):286-300

Andean Potato is a major crop for farmers in the Andes and represents an important gene pool for potato improvement. We present the population structure and genetic diversity of 88 Andigena accessions collected in Northwestern Argentina based on functional markers (25 SSR) distributed along 12 chromosomes. Polymorphic information content ranged from 0.40 to 0.87. A Bayesian approach, a Principal Coordinate Analysis and a Cluster Analysis revealed the presence of: I) a major group containing most of the Andean accessions and II) a smaller group including the out-group cv. Spunta and the sequenced genotype DM. Several group specific alleles were detected. AMOVA showed that 81% of the variability was within each group. Eleven of the SSRs analyzed are linked or within genes reported to regulate traits of nutritional and industrial interest. Additionally, the allelic variant of a photoperiod dependent tuberization regulator gene, StCDF1.2, was exclusively detected in accessions clustered in group II.  相似文献   

Basin‐scale distribution and haplotype partitioning in different genetic lineages of the Neotropical migratory fish Salminus brasiliensis          下载免费PDF全文

Eva C. Rueda  Sebastián Sanchez  María Cecilia Bruno  Jorge Casciotta  Gastón Aguilera  Adriana E. Almirón  Federico J. Ruiz Díaz  Delia Fabiana Cancino  Baltazar Bugeau  Ezequiel Mabragaña  Mariano González‐Castro  Matías Delpiani  Juan Martín Díaz de Astarloa 《水产资源保护:海洋与淡水生态系统》2018,28(2):444-456

Preliminary investigation for quali-quantitative characterization of soils contaminated with 241Am and 152Eu by low-altitude unmanned aerial vehicles (UAVs) equipped with small size γ-ray spectrometer: detection efficiency and minimum detectable activity (MDA) concentration assessment     

Falciglia  Pietro P.  Biondi  Lorena  Catalano  Roberto  Immè  Giuseppina  Romano  Stefano  Vagliasindi  Federico G. A. 《Journal of Soils and Sediments》2018,18(6):2399-2409

Journal of Soils and Sediments - Localization and quali-quantitative characterization of radionuclide-contaminated soils are essential for healthcare and remediation activities. However,...  相似文献   

Graphosoma lineatum (Hemiptera: Pentatomidae): a suitable host for mass rearing Ooencyrtus telenomicida (Hymenoptera: Encyrtidae)     

Pio Federico Roversi  Matteo Maltese  Sauro Simoni  Pasquale Cascone  Francesco Binazzi  Agostino Strangi 《国际虫害防治杂志》2018,64(4):294-302

The species Ooencyrtus telenomicida (Vassiliev) (Hymenoptera: Encyrtidae) is currently being considered as a candidate for augmentative biological control agent (BCA) against several pests, including Halyomorpha halys (Stål) (Heteroptera: Pentatomidae). Protocols for mass production of a BCA need fundamental information on its biological attributes. Here we tested a possible laboratory host for the rearing of O. telenomicida: the common bug Graphosoma lineatum L. (Heteroptera: Pentatomidae). At tested conditions, O. telenomicida biological parameters were: r_m 0.154, offspring production 84.07 specimens/female, sex ratio (% females) 71%, juvenile development time about 16 days, population doubling time 4.52 days, emergence rate about 90%.  相似文献   

Field‐evolved resistance to Bt maize in sugarcane borer (Diatraea saccharalis) in Argentina          下载免费PDF全文

Damián A Grimi  Betiana Parody  María Laura Ramos  Marcos Machado  Federico Ocampo  Alan Willse  Samuel Martinelli  Graham Head 《Pest management science》2018,74(4):905-913

BACKGROUND

Maize technologies expressing Bacillus thuringiensis (Bt) insecticidal proteins are widely used in Argentina to control sugarcane borer (Diatraea saccharalis Fabricius). Unexpected D. saccharalis damage was observed to Bt maize events TC1507 (expressing Cry1F) and MON 89034 × MON 88017 (expressing Cry1A.105 and Cry2Ab2) in an isolated area of San Luis Province. Diatraea saccharalis larvae were sampled from MON 89034 × MON 88017 fields in the area to generate a resistant strain (RR), which was subsequently characterized in plant and diet bioassays.

RESULTS

Survivorship of the RR strain was high on TC1507 leaf tissue, intermediate on MON 89034 × MON 88017, and low on MON 810 (expressing Cry1Ab). The RR strain had high resistance to Cry1A.105 (186.74‐fold) and no resistance to Cry2Ab2 in diet bioassays. These results indicate resistance to Cry1F and Cry1A.105 (and likely cross‐resistance between them) but not to Cry1Ab or Cry2Ab2. Resistance to MON 89034 × MON 88017 was functionally recessive. Reviews of grower records suggest that resistance initially evolved to Cry1F, conferring cross‐resistance to Cry1A.105, with low refuge compliance as the primary cause. A mitigation plan was implemented in San Luis that included technology rotation, field monitoring, and grower education on best management practices (BMPs) including refuges.

CONCLUSION

In the affected area, the resistance to Cry1F and Cry1A.105 is being managed effectively through use of MON 89034 × MON 88017 and MON 810 in combination with BMPs, and no spread of resistance to other regions has been observed. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.  相似文献   

Wide Range Applications of Spirulina: From Earth to Space Missions     

Giacomo Fais  Alessia Manca  Federico Bolognesi  Massimiliano Borselli  Alessandro Concas  Marco Busutti  Giovanni Broggi  Pierdanilo Sanna  Yandy Marx Castillo-Aleman  Ren Antonio Rivero-Jimnez  Antonio Alfonso Bencomo-Hernandez  Yendry Ventura-Carmenate  Michela Altea  Antonella Pantaleo  Gilberto Gabrielli  Federico Biglioli  Giacomo Cao  Giuseppe Giannaccare 《Marine drugs》2022,20(5)

Spirulina is the most studied cyanobacterium species for both pharmacological applications and the food industry. The aim of the present review is to summarize the potential benefits of the use of Spirulina for improving healthcare both in space and on Earth. Regarding the first field of application, Spirulina could represent a new technology for the sustainment of long-duration manned missions to planets beyond the Lower Earth Orbit (e.g., Mars); furthermore, it could help astronauts stay healthy while exposed to a variety of stress factors that can have negative consequences even after years. As far as the second field of application, Spirulina could have an active role in various aspects of medicine, such as metabolism, oncology, ophthalmology, central and peripheral nervous systems, and nephrology. The recent findings of the capacity of Spirulina to improve stem cells mobility and to increase immune response have opened new intriguing scenarios in oncological and infectious diseases, respectively.  相似文献