Effects of Different Generations Backcross on Transferring Botanical and Economic Characters in Genetic Male Sterile Line of Brassica campesttris L.ssp.chinesis L. var.rosularis Tsen et Lee(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Different Generations Backcross on Transferring Botanical and Economic Characters in Genetic Male Sterile Line of Brassica campesttris L.ssp.chinesis L. var.rosularis Tsen et Lee

Author(s):: XU Wei; CUI Jin-xia; LIU Hui-ying; SHI Wei-min; College of Agriculture，Shihezi University，Shihezi，Xinjiang 832003

Keywords:: Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee; backcross; botanical characters; economic characters

Abstract:: In order to transfer genetic male sterile line which botanical and economic characters were similar to Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee, a genetic male sterile line of Brassica campesttris L.ssp.chinesis was crossed with the self-line of Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee,then the F₁ was backcrossed with the self-line of Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee for several generations.The different generations backcross with the self-line in botanical characters，economic characters and variation degree were compared.The results showed that the materials of three generations backcross were similar to self-line of Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee.Therefore it deduced that three generations backcross were optimum to transfer genetic male sterile line of Brassica campesttris L.ssp.chinesis L.var.rosularis Tsen et Lee.

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Last Update: 2014-08-31