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| Map Set Name: |
Prunus-GN-F2 |
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| Abbreviated Name: |
Prunus-GN-F2 |
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| Accession ID: |
122 |
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| Species: |
Prunus (Prunus) |
[ View Species Info ] |
| Map Type: |
Genetic |
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| Map Units: |
cM |
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| Published On: |
01 June, 2001 |
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Description:
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A map with 51 markers (46 RFLPs and five
isozymes) was constructed using an interspecific F2
population between 'Garfi' almond (Prunus amygdalus
Batsch.) and 'Nemared' peach [Prunus persica (L.)
Batsch.]. This map was developed by selecting markers
covering most of the distance of the eight linkage groups
from previously constructed Prunus maps. The markers
studied in this population mapped to seven linkage
groups instead of the eight expected in Prunus. Markers
belonging to groups 6 and 8 in previous maps formed a
single group in the 'Garfi'x'Nemared' F2 and several
marker pairs placed in different groups in other maps exhibited
tight linkages. The study of pollen fertility and
chromosome behavior during meiosis in the F1 generation
allowed us to confirm the hypothesis that a reciprocal
translocation exists between 'Garfi' and 'Nemared'.
Based on independent evidence of linkage between
markers and pollen fertility data in the F2 population, we
concluded that the breakpoint of the reciprocal translocation
was placed between markers AC50 and AG26A in
group 6 and between markers AG112A and FG230A in
group 8. |
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