A comparative physical map reveals the pattern of chromosomal evolution between the turkey (Meleagris gallopavo) and chicken (Gallus gallus) genomes

Table 3 Summary properties of comparative BAC contig map and rearrangements

MGA chromosome	Number of contigs	GGA orthologue	Total contig length (bp)	Average contig length (bp)	Number of major inversions
MGA1	9	GGA1	198,141,542	22,015,727	0
MGA2	1	GGA3	111,826,550	111,826,550	2
MGA3	1	GGA2q	100,502,741	100,502,741	1
MGA4	3	GGA4q	72,769,490	24,256,497	0
MGA5	2	GGA5	60,352,001	30,176,001	2
MGA6	1	GGA2p	51,981,596	51,981,596	0
MGA7	5	GGA7	36,281,918	7,256,384	1
MGA8	2	GGA6	34,867,379	17,433,690	4
MGA9	1	GGA4p	19,188,313	19,188,313	0
MGA10	2	GGA8	29,163,447	14,581,724	2
MGA11	2	GGA9	23,514,388	11,757,194	1
MGA12	1	GGA10	22,321,123	22,321,123	0-2*
MGA13	1	GGA11	21,290,332	21,290,332	1
MGA14	2	GGA12	19,602,960	9,801,480	1-4
MGA15	2	GGA13	17,856,723	8,928,362	2
MGA16	1	GGA14	15,894,242	15,894,242	1
MGA17	1	GGA15	12,928,248	12,928,248	0
MGA18	1	GGA16	68,068	68,068	ND
MGA19	1	GGA17	10,577,421	10,577,421	0
MGA20	1	GGA18	10,507,821	10,507,821	1
MGA21	1	GGA19	9,897,437	9,897,437	0
MGA22	3	GGA20	13,624,242	4,541,414	0
MGA23	1	GGA21	6,854,714	6,854,714	0
MGA24	3	GGA22	3,657,921	1,219,307	0
MGA25	2	GGA23	5,832,856	2,916,428	0-2*
MGA26	1	GGA24	6,430,646	6,430,646	0
MGA27	5	GGA25	2,143,571	428,714	ND
MGA28	2	GGA26	4,831,899	2,415,950	0
MGA29	3	GGA27	4,641,426	1,547,142	0
MGA30	2	GGA28	4,439,785	2,219,893	ND
MGAZ	11	GGAZ	72,157,792	6,559,799	1**
TOTALS	74		1,004,148,592	13,569,576	20-27

ND indicates that the comparative map and/or chicken sequence assembly are incomplete
*Pattern can be explained by two sequential inversions or centromere replacement
**There may be additional small rearrangements

ISSN: 1471-2164