In:
Euphytica, Springer Science and Business Media LLC, Vol. 208, No. 3 ( 2016-04), p. 519-534
Abstract:
During 2011–2014, three self-compatible Chinese cabbage inbred lines ( Brassica rapa , genome AA 2n = 20) were sexually hybridised with cytoplasmic male-sterile ( CMS Ogu - INRA ) and fertile lines of rapeseed ( Brassica napus var. oleifera , genome AACC 2n = 38). Interspecific F 1 hybrids and their consecutive back-crosses (BCs) toward B. rapa were obtained, and their morphological and commercial characteristics, as well as their ability for generative propagation, were analysed. Cytometric and morphological analyses confirmed the interspecific character of the F 1 hybrids in comparison with B. napus and B. rapa parental lines. All interspecific F 1 hybrids had intermediate morphological characteristics typical of both parental components in the generative and vegetative stages. The F 1 hybrids of CMS B. napus × B. rapa were sterile, as were those of fertile B. napus × B. rapa . Good seed productivity from CMS B. napus × B. rapa and consecutive back-cross 1 (BC 1 )–BC 3 generations with Chinese cabbage as the recurrent parent was obtained. Plants of the BC 1 generation of CMS B. napus × B. rapa were sterile and had highly diversified morphological characteristics, both in the vegetative and generative phases. The BC 3 generation of CMS B. rapa was also sterile and more uniform than BC 1 , with good vigour and most of the typical Chinese cabbage agronomic traits. As a result, a collection of Chinese cabbage genotypes having the CMS trait, which is valuable for the breeding of commercial F 1 hybrids, was obtained for the first time in Poland.
Type of Medium:
Online Resource
ISSN:
0014-2336
,
1573-5060
DOI:
10.1007/s10681-015-1595-9
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2016
detail.hit.zdb_id:
2012322-X
SSG:
12
SSG:
21
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