Comparative metabolic and transcriptional analysis of a doubled diploid and its diploid citrus rootstock (C. junos cv. Ziyang xiangcheng) suggests its potential value for stress resistance improvement

Tan, Feng-Quan; Tu, Hong; Liang, Wu-Jun; Long, Jian-Mei; Wu, Xiao-Meng; Zhang, Hong-Yan; Guo, Wen-Wu

doi:10.1186/s12870-015-0450-4

Table 2 Identified metabolites showing statistically significant changes between 2× and 4× Ziyang xiangcheng

From: Comparative metabolic and transcriptional analysis of a doubled diploid and its diploid citrus rootstock (C. junos cv. Ziyang xiangcheng) suggests its potential value for stress resistance improvement

Peak no.	RT (min)	Component name	[M + H] ⁺	MS/MS fragments	Family	Trend ^c
1	1.0	Octopamine^b	154	91	Alkaloid	up
2	5.2	Coumaric acid^b	165	147/120/65/91	Cinnamic Acid	down
3	8.8	Narirutin^a	581	273/434	Flavanone	up
4	8.9	Neodiosmin^b	609	301/463	Flavone	down
5	9.0	Naringin^a	581	273	Flavanone	up
6	9.1	Hesperidin^a	611	303	Flavanone	up
7	9.3	Neohesperidin^a	611	303	Flavanone	up
8	9.9	Brutieridin^b	755	303	Flavanone	up
9	10.5	Didymin^a	595	287	Flavanone	up
10	10.6	PMFs-1^b	359	344/329/298	Flavone	down
11	11.2	PMFs-2^b	359	329/344	Flavone	down
12	11.5	PMFs-3^b	375	360/345	Flavone	down
13	11.6	PMFs-4^b	359	298/326/344	Flavone	down
14	11.8	PMFs-5^b	359	326/344	Flavone	down
15	12.4	PMFs-6^b	389	359/341/374	Flavone	down
16	12.5	PMFs-7^b	359	329/344	Flavone	down
17	12.5	Isosinensetin^b	373	343	Flavone	down
18	12.7	PMFs-8^b	403	373/388	Flavone	down
19	12.8	PMFs-9^b	389	359/374	Flavone	down
20	12.8	PMFs-10^b	375	317/342	Flavone	down
21	12.9	PMFs-11^b	419	389/371/404	Flavone	down
22	13.0	PMFs-12^b	403	373/327/388	Flavone	down
23	13.1	PMFs-13^b	345	330/315	Flavone	down
24	13.3	Sinensetin^a	373	343/312/329/357	Flavone	down
25	13.3	PMFs-14^b	343	328/313	Flavone	down
26	13.6	PMFs-15^b	345	330/284/312	Flavone	down
27	13.6	PMFs-16^b	405	375/390	Flavone	down
28	13.7	Limonin^a	471	161/425	Limonoid	up
29	13.7	PMFs-17^b	375	360/345/317	Flavone	down
30	14.0	PMFs-18^b	359	343/329	Flavone	down
31	14.2	Nomilin^a	515	161	Limonoid	down
32	14.2	Nobiletin^a	403	373	Flavone	down
33	14.3	Tetramethyl-O-scutellarein^b	343	313/282/299	Flavone	down
34	14.4	PMFs-19^b	389	331/356/313/374	Flavone	down
35	14.5	PMFs-20^b	359	329/346	Flavone	down
36	14.8	Heptamethoxyflavone^b	433	418/403	Flavone	down
37	15.0	PMFs-21^b	343	313/328	Flavone	down
38	15.0	PMFs-22^b	359	298/326/343	Flavone	down
39	15.2	PMFs-23^b	419	389/404	Flavone	down
40	15.8	PMFs-24^b	405	375/347/357/390	Flavone	down
41	15.9	PMFs-25^b	389	359/374/341	Flavone	down
42	16.5	PMFs-26^b	419	389/404	Flavone	down
43	16.9	5-Demethyl tangeretin^b	359	344/329/301	Flavone	down

[M + H]⁺, protonated molecular ion. ^aIdentified by matching their retention time and mass spectra with known standard. ^bPutatively identified using ESI-MS fragmentation patterns. ^cRelative increased (up) or decreased (down) concentration in 4× as compared to 2×. Student’s t-test was used and a p-value of less than 0.05 was considered significant. PMFs, polymethoxyflavones.

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