|Table of Contents|

Obtain of Interspecific Hybrid Between Chinese Cabbage and Brassica juncea and Characterization

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年03
Page:
52-56
Research Field:
Publishing date:

Info

Title:
Obtain of Interspecific Hybrid Between Chinese Cabbage and Brassica juncea and Characterization
Author(s):
HU Jingxuan1; LIU Fuqiang2; ZHANG Yueqiang1; WANG Yanhua3; XUAN Shuxin3; ZHANG Weiwei1
(1.College of Life Science，Hebei Agricultural University，Baoding，Hebei 071001；2.Baoding Academy of Agricultural Sciences，Baoding，Hebei 071000；3.College of Horticulture，Hebei Agricultural University，Baoding，Hebei 071001)
Keywords:
Chinese cabbage; Brassica juncea L.; interspecific hybridization; allotriploid; meiosis
PACS:
-
DOI:
10.11937/bfyy.20201428
Abstract:
Chinese cabbage ‘A03’(2n=2x=20，AA) and Brassica juncea‘AABB’(2n=4x=36，AABB) were used as materials to obtain the allotriploid(2n=3x=AAB=28).The results showed that the growth potential of the triploid was stronger，the leaf color was deeper than the two parents，and the plant type was biased towards B.juncea.The leaves，flowers and buds also had both the traits of the two parents.The meiosis observation showed that at the diakinesis，bivalent，univalent and multivalent were generally formed，and homeology were showed between A genome and the B genome；At metaphase I，1-8 isolated chromosomes were often observed.At anaphase I，there were more abnormal phenomena such as chromosomes lagging，chromosome lossing and chromatids earlier separating,the sum of the number of chromosomes divided in to two poles were morethan 28.At anaphase II，the number of chromosomes assigned to each pole varied from 10 to 15，most of which were 12-13，and chromosome fragments existed.The obtain of Chinese cabbage-B.juncea allotriploid (AAB) laid the foundation for creatingalien addtion line with AA+B chromosome and studying the genetic relationship between A and B genomes.

References:

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Last Update: 2021-05-27