Science and Technology Production
Congress
Authorship
Garcia Gagliardi, Pedro
;
Christian Damian Lorenzo
;
Antonietti, Mariana Sofía
;
Dezar, Carlos Alberto Alejandro
;
CERDAN, PABLO DIEGO
Date
2018
Publishing House and Editing Place
INTA EEA Manfredi Córdoba, Argentina
Summary
Information provided by the agent in
SIGEVA
Alfalfa (Medicago sativa L.) is one of the most important forage crops worldwide. This is mainly due to severaltraits such as its adaptability to varying external conditions, its excellent high-quality forage yield and its capacityto fix nitrogen. Alfalfa constantly increases in yield during spring and until summer?s onset and reaches its peakwhen alfalfa plants start to flower. From this point onwards, the quality of the forage decreases due tomorphological changes, such as an increase in the ...
Alfalfa (Medicago sativa L.) is one of the most important forage crops worldwide. This is mainly due to severaltraits such as its adaptability to varying external conditions, its excellent high-quality forage yield and its capacityto fix nitrogen. Alfalfa constantly increases in yield during spring and until summer?s onset and reaches its peakwhen alfalfa plants start to flower. From this point onwards, the quality of the forage decreases due tomorphological changes, such as an increase in the proportion of stems and a reallocation of photosyntheticresources to the development of reproductive structures. Therefore, this decrease in quality represents a considerable loss of nutritive value. In alfalfa, flowering onset depends mainly on day-length and temperature. Ithas been studied that members of the TERMINAL FLOWER 1 (TFL1) family of genes play a major role as prominent flowering repressors in several plant species. The main objectives of this study involved the identification of TFL1 orthologues genes in alfalfa (msTFL1s) and the development of transgenic alfalfa lines overexpressing msTFL1s in order to delay flowering, extend the vegetative phase and therefore increase biomass yield without compromising the nutritive values
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Key Words
FLORACIONALFALFATRANSGENESISMEJORAMIENTO