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Table 4.

Estimated Numbers of Microsatellites ⩾20 bp in Length in the Avian Genome Assuming a Gene Content of 10% or 30% per Genome

Motif		10% coding DNA		30% coding DNA
Motif		total	spacing (kb)	total	spacing (kb)
A	22,085	54	17,177	70
AC[ii]	8,494	141	6,607	182
AAAC	6,795	177	5,285	227
AAAT	6,795	177	5,285	227
AT	3,398	353	2,643	454
AGG	3,191	376	3,912	307
AAAG	2,548	471	1,982	605
AGGG	2,548	471	1,982	605
AAGG	1,699	706	1,321	908
AAT	1,699	706	1,321	908
ACAG	1,699	706	1,321	908
ACGG	1,699	706	1,321	908
ACCT	1,699	706	1,321	908
AG	1,699	706	1,321	908
C	1,699	706	1,321	908
CCG	1,278	939	1,947	616
AGC	1,117	1,074	1,465	819
AAG	956	1,254	993	1,222
ACG	849	1,413	661	1,816
ACGC	849	1,413	661	1,816
ACC	268	4,478	804	1,493
AAC	54	22,388	161	7,463
Mononucleotide	23,784	50	18,498	65
Dinucleotide	13,591	88	10,571	114
Trinucleotide	9,414	127	11,253	107
Tetranucleotide	26,332	46	20,480	59
Total	73,120	16	60,802	20

[i] Avian species as in Table 2.

[ii] The proportion of these repeats estimated to be ⩾14 repeat units in length was 2600–3400 (1 in 350–450 kb).