Insight into durum wheat Lpx-B1: a small gene family coding for the lipoxygenase responsible for carotenoid bleaching in mature grains

Table 2 General features of the three haplotypes at gene, transcript and activity levels

Haplotype	Nomenclature	Gene/allele		Transcript		LOX activity^a(E.U./g of dry weight)
		GenBank accession n.	Length (bp)	GenBank accession n.	Length (bp)	Linoleate hydroperoxidation	β-carotene bleaching × 10^-2
I	Lpx-B1.1b Lpx-B1.3	HM126468 HM126469	4,172 4,062	HM126473 HM126469	2,586 2,586	4.60 ± 2.38^A	5.76 ± 1.50^A
II	Lpx-B1.1a Lpx-B1.2	HM126466 HM126467	4,246 4,263	HM126471 HM126472	2,586 2,586	2.59 ± 1.08^B	3.34 ± 0.65^B
III	Lpx-B1.1c Lpx-B1.2 ^b	HM126470 HM126467	1,505 4,263	HM126475 HM126472	1,101 2,586	0.12±0.09^c	0.47±0.23^c

^aValues are expressed as means of the three field replications ± S.D.; for each activity the different uppercase letters correspond to significantly different values (P < 0.05). ^bThe full-length of the Lpx-B1.2 gene isolated from the haplotype III cultivar Ofanto was found to be 100% identical to that isolated from the haplotype II cultivar Primadur.

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