An integrated genetic and physical map of homoeologous chromosomes 12 and 26 in Upland cotton (G. hirsutum L.)

BMC Genomics

Table 3 Summary of the integrated genetic, physical and transcript map of chromosomes 12 and 26.

	Chromosome 12	Chromosome 26
Total markers	287	207
Sequenced markers	166	128
Anchored markers	118	65
Single-locus markers	46	26
Positive BAC clones	2,059	1,199
Shared clones	791	791
Assembled contigs	220	115
Contigs anchored on one chromosome	110	48
Contigs shared between 12 and 26	67	67
Physical length (Mb)	73.5	34.2
Anchored fiber EST unigenes	401	207
Total anchored EST unigenes	492	321
Gene-rich islands*	4	5

*Gene-rich islands were identified by the number of EST unigenes per 10 cM interval; distribution pattern was tested by Poisson probability (p < 0.001) and gene-rich islands were confirmed by outlier statistic standard analysis.

ISSN: 1471-2164