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Legume Genomics and Genetics (online), 2010, Vol. 1, No.1, 1-6
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Figure 1 The map of relationship between K and Var[lnP(D)]
In this research 149 accessions were divided into 7
groups, whereas there are different sources of germ-
plasms scattered in different groups, which implied
that there was distinct genetic variations and certain
genetic similarities existed in the collection. The
group one contains 26 populations, of which 50% re-
leased cultivars, 16.67% foreign varieties and 12.87%
landraces. The highest proportion of effective alleles
to alleles was 92.96%, Shannon’s information index
was 0.027 8, and the average genetic distance was very
smaller among populations.The group two contains 24
populations, of which 18.81% landraces and being
13.89% foreign varieties. The proportion of effective
alleles to alleles was 89.58%, and Shannon’s informa-
tion index was 0.065 9. The third group three contains
20 populations, of which 16.83% landraces, 5.56% for-
eign varieties and 8.33% released cultivars. The propor-
tion of effective alleles to alleles was 84.47%, and Shan-
non’s information index was 0.124 0, and the largest
Table 2 The polymorphic index for tested Qinghai faba bean revealed by the AFLP primer combinations
Type
Size of
population
Number of
alleles (na)
ffective alleles
(ne)
ne/na
Poly-
band
Poly-
ratio
Information index Gene diversity
Tested all
germplasm
149
1.468 2±0.500 4
1.064 7±0.126 4 72.52
81
46.82
0.094 6±0.143 6 0.050 6±0.087 4
Landrace 101
1.445 1±0.498 4
1.065 5±0.126 3 73.73
77
44.51
0.095 4±0.1449
0.051 2±0.088 0
Abroad
36
1.300 6±0.459 8
1.063 4±0.143 0 81.76
52
30.06
0.084 3±0.151 8 0.047 4±0.093 6
Breeding 12
1.179 2±0.384 6
1.065 9±0.165 1 90.39
31
17.92
0.074 2±0.167 9 0.045 5±0.106 9
Figure 2 Genetic population structure sketch of faba bean germplasm tested in this research