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| Map Set Name: |
Apricot-GV-F1 |
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| Abbreviated Name: |
Apricot-GV-F1 |
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| Accession ID: |
33 |
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| Species: |
Prunus armeniaca (Apricot) |
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| Map Type: |
Genetic |
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| Map Units: |
cM |
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| Published On: |
14 June, 2002 |
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Description:
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Genetic linkage maps for two apricot cultivars
have been constructed using AFLP, RAPD, RFLP and
SSR markers in 81 F1 individuals from the cross 'Goldrich'
W 'Valenciano'. This family segregated for resistance
to 'plum pox virus' (PPV), the most-important virus
affecting Prunus species. Of the 160 RAPD arbitrary
primers screened a total of 44 were selected. Sixty one
polymorphic RAPD markers were scored on the mapping
population: 30 heterozygous in 'Goldrich', 19 heterozygous
in 'Valenciano', segregating 1:1, and 12 markers
heterozygous in both parents, segregating 3:1. A total of
33 and 19 RAPD markers were mapped on the 'Goldrich'
and 'Valenciano' maps respectively. Forteen primer combinations
were used for AFLPs and all of them detected
polymorphism. Ninety five markers segregating 1:1 were
identified, of which 62 were heterozygous in the female
parent 'Goldrich' and 33 in the male parent 'Valenciano'.
Forty five markers were present in both parents and segregated
3:1. A total of 82 and 48 AFLP markers were
mapped on the 'Goldrich' and 'Valenciano' maps. Twelve
RFLPs probes were screened in the population, resulting
in five loci segregating in the family, one locus heterozygous
for 'Valenciano' and four heterozygous for both,
segregating 1:2:1. Of the 45 SSRs screened 17 segregated
in the mapping family, resulting in seven loci heterozygous
for the maternal parent and ten heterozygous for
both, segregating 1:2:1 or 1:1:1:1. A total of 16 and 13
co-dominant markers were mapped in the female and
male parent maps respectively. A total of 132 markers
were placed into eight linkage groups on the 'Goldrich'. |
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| Map Set Name: |
Apricot-LL-F2 |
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| Abbreviated Name: |
Apricot-LL-F2 |
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| Accession ID: |
34 |
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| Species: |
Prunus armeniaca (Apricot) |
[ View Species Info ] |
| Map Type: |
Genetic |
[ View Map Type Info ] |
| Map Units: |
cM |
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| Published On: |
14 March, 2003 |
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Description:
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A genetic linkage map of apricot (Prunus
armeniaca L.) was constructed using AFLP and SSR
markers. The map is based on an F2 population (76
individuals) derived from self-pollination of an F1 individual
('Lito') originated from a cross between 'Stark
Early Orange' and 'Tyrinthos'. This family, designated as
'Lito' x 'Lito', segregated for two important agronomical
traits: plum pox virus resistance (PPV) and self-incompatibility.
A total of 211 markers (180 AFLPs, 29 SSRs
and two agronomic traits) were assigned to 11 linkage
groups covering 602 cM of the apricot genome. The
average distance (cM/marker) between adjacent markers
is 3.84 cM. The PPV resistance trait was mapped on
linkage group G1 and the self-incompatibility trait was
mapped on linkage group G6. Twenty two loci held in
common with other Prunus maps allowed us to compare
and establish homologies among the respective linkage
groups. |
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| Map Set Name: |
Apricot-LB-F1 |
[ Show Only This Set ] |
| Abbreviated Name: |
Apricot-LB-F1 |
[ Download Map Set Data ] |
| Accession ID: |
50 |
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| Species: |
Prunus armeniaca (Apricot) |
[ View Species Info ] |
| Map Type: |
Genetic |
[ View Map Type Info ] |
| Map Units: |
cM |
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| Published On: |
01 July, 2007 |
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Description:
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Linkage maps of the apricot accessions 'Lito' and 'BO 81604311' were constructed using a total of 185 simple sequence repeat (SSR) markers sampled from those isolated in peach, almond, apricot and cherry; 74 were derived from a new apricot genomic library enriched for AG/CT microsatellite repeats (UDAp series), and in total, 98 had never been mapped in Prunus before. Eight linkage groups putatively corresponding to the eight haploid apricot chromosomes were identified for each parent. The two maps were 504 and 620 cM long, respectively, with 96 anchor markers showing a complete co-linearity between the two genomes. As few as three gaps larger than 15 cM were present in 'Lito' and six in the male parent; the maps align well with all the available SSR-based Prunus maps through the many common anchor loci. Only occasionally inverted positions between adjacent markers were found, and this can be explained by the small size of cross populations analysed in these Prunus maps and in those reported in literature. The newly developed apricot SSRs will help saturating the existing Prunus maps and will extend the choice of markers in the development of genetic maps for new breeding populations. |
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| Map Set Name: |
Apricot-PS-F1 |
[ Show Only This Set ] |
| Abbreviated Name: |
Apricot-PS-F1 |
[ Download Map Set Data ] |
| Accession ID: |
54 |
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| Species: |
Prunus armeniaca (Apricot) |
[ View Species Info ] |
| Map Type: |
Genetic |
[ View Map Type Info ] |
| Map Units: |
cM |
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| Published On: |
01 January, 2008 |
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Description:
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Several genetic linkage maps have been published
in recent years on different Prunus species
suggesting a high level of resemblance among the
genomes of these species. One of these maps (Joobeur et al., Theor Appl Genet 97:1034?1041 [(1998); Aranzana et al., Theor Appl Genet 106:819?825 (2002b)] constructed from interspecific almond Texas x peach Earlygold
F2 progeny (TxE) was considered to be saturated.
We selected 142 F1 apricot hybrids obtained from a cross between P. armeniaca cvs. Polonais and Stark Early Orange for mapping. Eighty-eight RFLP probes and 20 peach SSR primer pairs used for the 'reference map' were selected to cover the eight linkage groups. One P.davidiana and an additional 14 apricot simple sequence repeats (SSRs) were mapped for the F1 progeny. Eighty three amplified fragment length polymorphisms were added in order to increase the density of the maps. Separate maps were made for each parent according to the ?double pseudo-testcross? model of analysis. A total of
141 markers were placed on the map of Stark Early
Orange, defining a total length of 699 cM, and 110 markers were placed on the map of Polonais, defining a total length of 538 cM. Twenty-one SSRs and 18 restriction placed in the TxE map were heterozygous in both parents (anchor loci), thereby enabling the alignment of the eight homologous linkage groups of each map. Except for 15 markers, most markers present in each
linkage group in apricot were aligned with those in TxE map, indicating a high degree of colinearity between the apricot genome and the peach and almond genomes. These results suggest a strong homology of the genomes between these species and probably between Prunophora and Amygdalus sub-genera. |
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