Genomic organization and molecular phylogenies of the beta (β) keratin multigene family in the chicken (Gallus gallus) and zebra finch (Taeniopygia guttata): implications for feather evolution

Table 2 Comparison of the Type and Number of β-keratin Genes Found on Each Chromosome.

Locus	Claw		Feather		Feather-like		Scale		Keratinocyte		BKJ
	Prob.	Pseudo	Prob.	Pseudo	Prob.	Pseudo	Prob.	Pseudo	Prob.	Pseudo	Prob.	Pseudo
GGA1	0	0	1	0	0	0	0	0	0	0	0	0
GGA2	0	0	5	2	0	0	0	0	0	0	0	0
GGA5	0	0	1	0	0	0	0	0	0	0	0	0
GGA6	0	0	0	0	0	0	0	0	0	0	3	0
GGA25	8	3	15	1	4	0	4	13	1	8	0	0
GGA27	0	0	61	6	0	0	0	0	0	0	0	0
GGA_Un	0	3	8	2	0	0	0	0	0	0	0	4
TGU2	0	0	22	5	0	0	0	0	0	0	0	0
TGU25	1	6	2	0	3	0	4	7	1	10	0	0
TGU27	0	0	41	2	0	0	0	0	0	0	0	0
TGU_Un	0	2	34	6	1	1	0	2	0	1	0	4

Comparison of the number of β-keratin coding regions found on each chromosome of both G. gallus and T. guttata. The identification of each probable (Prob.) gene is based on highest similarity to the cDNA nucleotide sequences listed in Table 3. All BLAST hits that failed to meet the stringent standards were determined to be pseudogenes (pseudo) (see Methods for details).

ISSN: 2730-7182