Physiological and molecular characterization of aluminum resistance in Medicago truncatula

Chandran, Divya; Sharopova, Natasha; VandenBosch, Kathryn A; Garvin, David F; Samac, Deborah A

doi:10.1186/1471-2229-8-89

BMC Plant Biology

Table 1 Mean relative root growth (n = 6) of M. truncatula lines after 2 d of growth in 2.5 μM Al solution.

From: Physiological and molecular characterization of aluminum resistance in Medicago truncatula

Line Designation	Accession Number	Country of Origin	Relative root growth (RRG)	(±)SE	P-value (<0.05 *<0.01)	RRG (normalized to A17)
USDA Collection
A32 (T32)	PI 384662	Morocco	0.93	0.05	0.001 **	2.92
A43	PI 577628	Spain	0.91	0.09	0.000 **	2.85
A41	PI 319045	Spain	0.88	0.05	0.000 **	2.75
A84	W6 6050	Tunisia	0.88	0.17	0.000 **	2.74
A10	PI 197361	Australia	0.81	0.11	0.000 **	2.52
A62	PI 464815	Turkey	0.80	0.28	0.001 **	2.50
A47	W6 6099	Portugal	0.71	0.09	0.000 **	2.20
A36	PI 516937	Morocco	0.67	0.13	0.000 **	2.08
A85	W6 6110	Italy	0.63	0.11	0.000 **	1.97
A55	W6 6000	France	0.60	0.07	0.000 **	1.88
A34	PI 516927	Morocco	0.60	0.08	0.000 **	1.87
A77	W6 6012	Italy	0.59	0.09	0.001 *	1.85
A91	PI 577617	Greece	0.59	0.03	0.000 **	1.84
A65	PI 577434	Tunisia	0.58	0.08	0.001 **	1.81
A100	W6 5983	Cyprus	0.56	0.10	0.003 **	1.75
A50	PI 577608	France	0.55	0.15	0.018 *	1.70
A11	PI 243884	Australia	0.54	0.12	0.012 *	1.69
A28	PI 384636	Morocco	0.52	0.06	0.005 **	1.63
A12	PI 442892	Australia	0.50	0.09	0.020 *	1.56
A88	PI 577599	Greece	0.49	0.13	0.052	1.54
A3	PI 190084	Australia	0.49	0.09	0.028 *	1.53
A87	PI 566887	Greece	0.48	0.21	0.183	1.49
A89	PI 577601	Greece	0.47	0.12	0.087	1.46
A101	W6 5984	Cyprus	0.44	0.06	0.083	1.38
A21	PI 577641	Australia	0.42	0.10	0.210	1.31
A15	PI 469099	Australia	0.38	0.07	0.438	1.19
A40	PI 244285	Spain	0.38	0.07	0.427	1.18
A66	PI 577619	Tunisia	0.35	0.15	0.787	1.10
A5	PI 190089	Australia	0.34	0.05	0.852	1.06
	A17	Australia	0.33	0.03	NA	1.00
A92	PI 577618	Greece	0.31	0.11	0.818	0.97
A93	PI 577604	Cyprus	0.30	0.07	0.690	0.94
A18	PI 517257	Australia	0.28	0.16	0.633	0.88
A82	W6 6047	Tunisia	0.28	0.03	0.418	0.87
A17	PI 469102	Australia	0.27	0.05	0.374	0.85
A42	PI 319051	Spain	0.23	0.08	0.000 **	0.72
A76	W6 5964	Italy	0.23	0.04	0.112	0.71
A19	PI 566888	Australia	0.19	0.07	0.044 *	0.60
A90	PI 577602	Greece	0.17	0.08	0.026 *	0.53
A70 (S70)	PI 577613	Italy	0.15	0.02	0.002 **	0.48
A60	PI 577614	Malta	0.15	0.10	0.028 *	0.48
A7	PI 190091	Australia	0.15	0.09	0.018 *	0.48
A31	PI 384660	Morocco	0.15	0.04	0.012 *	0.47
A4	PI 190087	Australia	0.14	0.04	0.004 **	0.44
A56	PI 493295	Portugal	0.13	0.07	0.005 **	0.40
A48	PI 535739	Libya	0.12	0.05	0.002 **	0.39
A79	W6 6025	Italy	0.08	0.06	0.001 **	0.26
French Collection
	DZA45.5	Algeria	0.61	0.08	0.000 **	1.91
	TN8.3	Tunisia	0.41	0.04	0.132	1.28
	TN1.11	Tunisia	0.35	0.03	0.656	1.10
	F83005.9	France	0.33	0.14	0.941	1.04
	F8005.5	France	0.30	0.03	0.586	0.93
	A20	Australia	0.25	0.05	0.207	0.80
	DZA315.16	Algeria	0.24	0.03	0.099	0.74
	TN6.18	Tunisia	0.19	0.11	0.124	0.59

RRG, Ratio of root growth in 2.5 μM Al solution to root growth in 0 μM Al solution; SE, standard error of the mean; P-value, significance comparing mean relative root growth for each line with that of A17. Student's t-test (assuming equal variance) using a two-tailed distribution was employed for the statistical test.

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ISSN: 1471-2229

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