The γ-gliadin multigene family in common wheat (Triticum aestivum) and its closely related species

BMC Genomics

Table 1 γ-Gliadin sequences cloned from wheat and Aegilops species

Species	Accession	Genome formula	Sequenced colonies	Putatively functional (Genbank No.)	Pseudogene (Genbank No.)	Total
T. aestivum	Chinese Spring	AABBDD	41	25 (FJ006589–FJ006613)	4 (FJ006678–FJ006681)	29
SHW	SHW-L1	AABBDD	20	10 (FJ006614–FJ006623)	2 (FJ006682–FJ006683)	12
T. dicoccoides	2--1	AABB	18	8 (FJ006563–FJ006570)	1 (FJ006675)	9
T. dicoccoides	3--1	AABB	18	6 (FJ006571–FJ006576)	1 (FJ006676)	7
T. turgidum	AS2255	AABB	33	12 (FJ006577–FJ006588)	1 (FJ006677)	13
aegilopoides	PI428001	A^mA^m	18	9 (FJ006624–FJ006632)	0	9
monococcum	PI191096	A^mA^m	18	1 (FJ006633)	10 (FJ006652–FJ006661)	11
T. urartu	PI428222	A^uA^u	18	7 (FJ006634–FJ006640)	7 (FJ006662–FJ006668)	14
Ae. speltoides	PI449338	SS	15	11 (FJ006692–FJ006702)	0	11
Ae. bicornis	CIae 47	S^bS^b	15	10 (FJ006703–FJ006712)	2 (FJ006669–FJ006670)	12
Ae. longissima	PI 604104	S^lS^l	15	11 (FJ006641–FJ006651)	1 (FJ006671)	12
Ae. searsii	PI 599123	S^sS^s	15	8 (FJ006684–FJ006691)	2 (FJ006672–FJ006673)	10
Ae. sharonesis	CIae 32	S^shS^sh	15	9 (FJ006713–FJ006721)	1 (FJ006674)	10
Ae. tauschii	AS60	DD	18	11 (FJ006552–FJ006562)	0	11
Total			277	138	32	170

T. aestivum originated from the hybridization between T. turgidum and Ae. tauschii, followed by genome duplication. T. turgidum evolved from T. dicoccoides that was formed in the intercrossing between T. urartu and Ae. speltoides (closely relates to the B genome). T. monococcum was one representative of the A genome as well. The other four species of Sitopsis were used as relatives to Ae. speltoides; SHW = synthetic hexaploid wheat; aegilopoides = T. monococcum ssp. aegilopoides; monococcum = T. monococcum ssp. monococcum.

ISSN: 1471-2164