Table 1.

The genotypes used in this study, their locations of origin, by place name, latitude (N) and longitude (negative sign indicates W, positive E), and elevation in metres. ‘CS nos’ are standard ABRC stock numbers and ‘Accession’ names are from the stock list. Col-0 through Cvi-0 were used to assess natural genetic variation in temperature gradient Hsp101 expression response curves (experiment 1). Col-0, Ler-2 and the hot1-3 null mutants were used to assess fitness effects of Hsp101 functionality and, with Mt-0 and Sha, to assess effects of tissue Hsp101 content on fitness and phenotypic traits

Accession	CS Nos	Country	Town/source	Latitude	Longitude	Altitude (m)
Col-0	1092	Poland	Landsberg/Warthe	53	16	100
Est-1	6701	Russia	Estland	59	28	200
Lc-0	6769	Scotland	Loch Ness	58	−5	100
PHW-24	6078	United Kingdom	Sidmouth	51	−3	10
Bay-0	57923	Germany	Bayreuth	49	16.5	150
Co-1	6669	Portugal	Coimbra	41	−9	100
Sha	6180	Tadjikistan	Pamiro-Alay	38	68	3400
Ct-1	6674	Italy	Catania, Sicily	37	15	100
Mt-0	6799	Libya	Martuba/Cyrenaika	33	23	312
Cvi-0	8580	Cape Verde	–	16	−24	1200
Ler-2	8581	Poland	Landsberg/Warthe	53	16	100
Colhot1-3	–	Laboratory	Dr E. Vierling	–	–	–
Lerhot1-3	–	Laboratory	Dr E. Vierling	–	–	–