Linkage disequilibrium among modern sugarcane cultivars

ISSN:
1432-2242
Keywords:
Key words Sugarcane cultivars ; Linkage disequilibrium ; Foundation bottleneck ; Interspecific hybrids ; RFLP
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
Type of Medium:
Electronic Resource
URL:
_version_ 1798295971960979456
autor Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
autorsonst Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
book_url http://dx.doi.org/10.1007/s001220051414
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM199888620
issn 1432-2242
journal_name Theoretical and applied genetics
materialart 1
notes Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
package_name Springer
publikationsjahr_anzeige 1999
publikationsjahr_facette 1999
publikationsjahr_intervall 8004:1995-1999
publikationsjahr_sort 1999
publisher Springer
reference 99 (1999), S. 1053-1060
schlagwort Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
search_space articles
shingle_author_1 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
shingle_author_2 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
shingle_author_3 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
shingle_author_4 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
shingle_catch_all_1 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
Linkage disequilibrium among modern sugarcane cultivars
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
1432-2242
14322242
Springer
shingle_catch_all_2 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
Linkage disequilibrium among modern sugarcane cultivars
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
1432-2242
14322242
Springer
shingle_catch_all_3 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
Linkage disequilibrium among modern sugarcane cultivars
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
1432-2242
14322242
Springer
shingle_catch_all_4 Jannoo, N.
Grivet, L.
Dookun, A.
D’Hont, A.
Glaszmann, J. C.
Linkage disequilibrium among modern sugarcane cultivars
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Key words Sugarcane cultivars
Linkage disequilibrium
Foundation bottleneck
Interspecific hybrids
RFLP
Abstract  Modern sugarcane cultivars are derived from a few interspecific hybrids created early in this century. Linkage disequilibrium was investigated in a population of 59 cultivars representing the most important commercial clones bred in Mauritius as well as a few old cultivars involved in their genealogy. Thirty-eight probes scattered over the sugarcane genome map were used to reveal RFLPs. Forty-two cases of bilocus associations were observed involving a total of 33 loci. Most of them are separated by less than 10 cM. All the corresponding allele couples were found in at least 1 of the originally created cultivars, suggesting that they depict ancient associations. This global disequilibrium is interpreted as the result of the foundation bottleneck related to the first interspecific crosses; the preferential allele associations thus created have been maintained through subsequent crosses when the loci were closely linked. This phenomenon is likely also to apply to genes of agricultural interest. A practical consequence is that markers can be used to track known QTLs in modern breeding materials without the necessity to repeatedly study segregating progenies. This structure gives high value to the correlation between molecular markers and agricultural traits among cultivars.
1432-2242
14322242
Springer
shingle_title_1 Linkage disequilibrium among modern sugarcane cultivars
shingle_title_2 Linkage disequilibrium among modern sugarcane cultivars
shingle_title_3 Linkage disequilibrium among modern sugarcane cultivars
shingle_title_4 Linkage disequilibrium among modern sugarcane cultivars
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geomar
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albert
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source_archive Springer Online Journal Archives 1860-2000
timestamp 2024-05-06T09:44:41.360Z
titel Linkage disequilibrium among modern sugarcane cultivars
titel_suche Linkage disequilibrium among modern sugarcane cultivars
topic W
uid nat_lic_papers_NLM199888620