| Autor: |
An F; Tropical Crops Genetic Resources Institute , Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Ministry of Agriculture for Germplasm Resources Conservation and Utilization of Cassava , Danzhou 571737 , China., Chen T; College of Agronomy , Hainan University , Haikou 571101 , China., Li QX; Department of Molecular Biosciences and Bioengineering , University of Hawaii at Manoa , Honolulu , Hawaii 96822 , United States., Qiao J; College of Agronomy , Hainan University , Haikou 571101 , China., Zhang Z; Tropical Crops Genetic Resources Institute , Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Ministry of Agriculture for Germplasm Resources Conservation and Utilization of Cassava , Danzhou 571737 , China., Carvalho LJ; Genetic Resources and Biotechnology , Embrapa , Brasilia , 70770-917 Brazil., Li K; Tropical Crops Genetic Resources Institute , Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Ministry of Agriculture for Germplasm Resources Conservation and Utilization of Cassava , Danzhou 571737 , China., Chen S; Tropical Crops Genetic Resources Institute , Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Ministry of Agriculture for Germplasm Resources Conservation and Utilization of Cassava , Danzhou 571737 , China. |
| Abstrakt: |
The underlying mechanisms of the higher photosynthetic efficiency of cultivated cassava relative to its wild species are poorly understood. In the present study, proteins in leaves and chloroplasts were analyzed to compare the differences among the cultivar SC205, its wild ancestor W14, and the related species Glaziovii. The functions of differential proteins are associated with 10 ontology groups including photosynthesis, carbohydrate and energy metabolism, as well as potential signal pathway. The protein-protein networks among 41 differential proteins showed that PGK1 is a hub protein and protein cross-interactions affected the differentiation of photosynthetic rate. Anatomy patterns and PEPC detection suggested that SC205 has more C 4 photosynthesis characteristics than Glaziovii and W14. Finally, a mechanism model of the efficient photosynthesis was proposed based on the remarkable variations in photosynthetic parameters and protein functions in the domestic cultivars. |
