We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
白菜型油菜黄芽白与甘蓝型油菜湘油15种间杂交及其杂种 后代的遗传学特征.
- Authors
陈纪鹏; 刘小林; 李生强; 刘显军; 胡月清; 陈桃
- Abstract
In the present study, Brassica napus cv. Xiangyou 15 and B. campestris ssp. pekinensis were used as parents to obtain the interspecific hybrid, and the second generation was gained by self-crossing to obtain rapeseed germplasm with valuable traits. And the meiosis of pollen mother cells (PMCs) were observed via microscope. The results showed that it was easier to obtain hybrid progenies when B. napus was used as female parent, but it was more difficult when B. campestris was used as female parent. The plant type and leaf morphology of progenies from reciprocal crosses were similar to those of B. napus. At the diakinesis, the majority of the chromosomes formed biva-lents or univalents, and a few of chromosomes formed multivalents. At metaphase and anaphase, laggard chromo-somes and anaphase bridges were observed in PMCs. The stamen did not develop very well and a lot of pollens were not fertile, and the seed setting rate was relatively low in the first generation. The pollen fertility and seed setting rate of the second generation were significantly (P <O. 01 ) higher than those of the first generation. It is expected that the hybrid fertility will be restored well via selling crossing, which can be used as genetic resources for further genetic 11.1612// I-1 MO 1/11t1 inn' improvement of B. napes
- Publication
Acta Agriculturae Zhejiangensis, 2021, Vol 33, Issue 7, p115
- ISSN
1004-1524
- Publication type
Article
- DOI
10.3949/j,issn.004-1524.202.07.02