Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system
This study was designed to control plant fertility by cell lethal gene Barnase expressing at specific developmental stage and in specific tissue of male organ under the control of Cre/loxP system, for heterosis breeding, producing hybrid seed of eggplant. The Barnase-coding region was flanked by lox...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Genética
2010-01-01
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| Series: | Genetics and Molecular Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200017 |
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| author | Bihao Cao Zhiyin Huang Guoju Chen Jianjun Lei |
| author_facet | Bihao Cao Zhiyin Huang Guoju Chen Jianjun Lei |
| author_sort | Bihao Cao |
| collection | DOAJ |
| description | This study was designed to control plant fertility by cell lethal gene Barnase expressing at specific developmental stage and in specific tissue of male organ under the control of Cre/loxP system, for heterosis breeding, producing hybrid seed of eggplant. The Barnase-coding region was flanked by loxP recognition sites for Cre-recombinase. The eggplant inbred/pure line ('E-38') was transformed with Cre gene and the inbred/pure line ('E-8') was transformed with the Barnase gene situated between loxp. The experiments were done separately, by means of Agrobacterium co-culture. Four T0-plants with the Barnase gene were obtained, all proved to be male-sterile and incapable of producing viable pollen. Flowers stamens were shorter, but the vegetative phenotype was similar to wild-type. Five T0-plants with the Cre gene developed well, blossomed out and set fruit normally. The crossing of male-sterile Barnase-plants with Cre expression transgenic eggplants resulted in site-specific excision with the male-sterile plants producing normal fruits. With the Barnase was excised, pollen fertility was fully restored in the hybrids. The phenotype of these restored plants was the same as that of the wild-type. Thus, the Barnase and Cre genes were capable of stable inheritance and expression in progenies of transgenic plants. |
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| issn | 1415-4757 1678-4685 |
| language | English |
| last_indexed | 2024-12-19T17:02:30Z |
| publishDate | 2010-01-01 |
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| spelling | doaj.art-db2e4c6b939a4b6daaffd1dbcebeb1da2022-12-21T20:13:16ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852010-01-01332298307Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination systemBihao CaoZhiyin HuangGuoju ChenJianjun LeiThis study was designed to control plant fertility by cell lethal gene Barnase expressing at specific developmental stage and in specific tissue of male organ under the control of Cre/loxP system, for heterosis breeding, producing hybrid seed of eggplant. The Barnase-coding region was flanked by loxP recognition sites for Cre-recombinase. The eggplant inbred/pure line ('E-38') was transformed with Cre gene and the inbred/pure line ('E-8') was transformed with the Barnase gene situated between loxp. The experiments were done separately, by means of Agrobacterium co-culture. Four T0-plants with the Barnase gene were obtained, all proved to be male-sterile and incapable of producing viable pollen. Flowers stamens were shorter, but the vegetative phenotype was similar to wild-type. Five T0-plants with the Cre gene developed well, blossomed out and set fruit normally. The crossing of male-sterile Barnase-plants with Cre expression transgenic eggplants resulted in site-specific excision with the male-sterile plants producing normal fruits. With the Barnase was excised, pollen fertility was fully restored in the hybrids. The phenotype of these restored plants was the same as that of the wild-type. Thus, the Barnase and Cre genes were capable of stable inheritance and expression in progenies of transgenic plants.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200017eggplantmale sterilityBarnase geneCre geneCre/loxP system |
| spellingShingle | Bihao Cao Zhiyin Huang Guoju Chen Jianjun Lei Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system Genetics and Molecular Biology eggplant male sterility Barnase gene Cre gene Cre/loxP system |
| title | Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system |
| title_full | Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system |
| title_fullStr | Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system |
| title_full_unstemmed | Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system |
| title_short | Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system |
| title_sort | restoring pollen fertility in transgenic male sterile eggplant by cre loxp mediated site specific recombination system |
| topic | eggplant male sterility Barnase gene Cre gene Cre/loxP system |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200017 |
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