Key Laboratory of Horticultural Crop Biology and Germplasm Innovation

Beijing, China

Key Laboratory of Horticultural Crop Biology and Germplasm Innovation

Beijing, China
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Ma Z.-G.,Key Laboratory of Horticultural Crop Biology and Germplasm Innovation | Ma Z.-G.,Chinese Academy of Agricultural Sciences | Kong X.-P.,Xining Vegetable Research Institute | Liu L.-J.,Key Laboratory of Horticultural Crop Biology and Germplasm Innovation | And 11 more authors.
Euphytica | Year: 2016

Cultivated carrots can be divided into eastern and western types. Much evidence supports the idea that eastern carrots originated in Central Asia, while varying opinions exist on the origin of western carrots, especially orange varieties, and the origin of Chinese orange carrots remains unclear. In this study, we used 119 carrot accessions to investigate the relationship between Chinese carrots and western orange varieties (Western orange) using morphology and simple sequence repeat (SSR) markers. The results demonstrate that Chinese carrots are eastern-type and maintain the primitive traits of strong and pubescent leaves, and early flowering. Despite being morphologically similar, the STRUCTURE and phylogenetic analysis based on SSR markers indicated that Western orange were clearly separated from Chinese carrots. These findings, in conjunction with historical documents suggesting that the first Chinese carrots seem to be yellow, suggest that Chinese orange were derived from Chinese red according to the mixed distribution of red and orange accessions. These results suggest that Chinese orange carrots may have undergone a specific, independent process different from that of Western orange. © 2016 Springer Science+Business Media Dordrecht


Hao J.H.,Chinese Academy of Agricultural Sciences | Hao J.H.,Key Laboratory of Horticultural Crop Biology and Germplasm Innovation | Dong C.J.,Chinese Academy of Agricultural Sciences | Dong C.J.,Key Laboratory of Horticultural Crop Biology and Germplasm Innovation | And 6 more authors.
Plant Science | Year: 2012

To investigate the response of cucumber seedlings to exogenous salicylic acid (SA) and gain a better understanding of SA action mechanism, we generated a proteomic profile of cucumber (Cucumis sativus L.) cotyledons treated with exogenous SA. Analysis of 1500 protein spots from each gel revealed 63 differentially expressed proteins, 59 of which were identified successfully. Of the identified proteins, 97% matched cucumber proteins using a whole cucumber protein database based on the newly completed genome established by our laboratory. The identified proteins were involved in various cellular responses and metabolic processes, including antioxidative reactions, cell defense, photosynthesis, carbohydrate metabolism, respiration and energy homeostasis, protein folding and biosynthesis. The two largest functional categories included proteins involved in antioxidative reactions (23.7%) and photosynthesis (18.6%). Furthermore, the SA-responsive protein interaction network revealed 13 key proteins, suggesting that the expression changes of these proteins could be critical for SA-induced resistance. An analysis of these changes suggested that SA-induced resistance and seedling growth might be regulated in part through pathways involving antioxidative reactions and photosynthesis. © 2012 Elsevier Ireland Ltd.

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