Karyotyping and identifying all of the chromosomes of allopolyploid Brassica juncea using multicolor FISH
Karyotyping and identifying all of the chromosomes of allopolyploid Brassica juncea using multicolor FISH
复制标题
使用多色 FISH 对异源多倍体芥菜的所有染色体进行核型分析和鉴定
DOI:
--
复制
发表时间:
2016-08
期刊:
影响因子:
--
通讯作者:
Zhiyong Xiong
中科院分区:
文献类型:
--
作者:
Zhijun Xu;Bei Xie;Tian Wu;Xiaoxia Xin;Lingyu Mang;Guangxuan Tan;Zhiyong Xiong
Chromosome identification and karyotype using fluorescence in situ hybridization(FISH)provides a technical platform for genome and cytogenetic studies. Brassica juncea(brown mustard, 2n = 4× = 36; genome AABB) is an allopolyploid species that originated from a spontaneous hybridization of Brassica rapa and Brassica nigra and contains many valuable traits. In this study, a multicolor FISH procedure allowing the identification of all 18 chromosomal pairs was developed by two-step hybridizations with probes on the same metaphase chromosomes. The distribution patterns and chromosomal localizations of six repeat sequences(satellite repeat p Br STR, 5S r DNA, 45 S r DNA, B genome-specific repeat p BNBH35, and centromeric satellite repeats Cent Br1 and Cent Br2) on B. juncea chromosomes were characterized.Comparative karyotype analyses showed that the genome is relatively stable in comparison with its diploid progenitor species and revealed intraspecific karyotypic diversity among three accessions of B. juncea. This study provides valuable information about the genome evolution of B. juncea and a toolkit that will be helpful for chromosome identification.
登录
查看更多内容
DOI:
--
发表时间:
1935
期刊:
--
影响因子:
--
作者:
Nu
通讯作者:
Nu
影响因子:
7.2
作者:
Lim, Ki-Byung;Yang, Tae-Jin;Park, Beom-Seok
通讯作者:
Park, Beom-Seok
影响因子:
1.9
作者:
W. Felix;L. Felix;N. Melo;J. H. Dutilh;Reginaldo de Carvalho
通讯作者:
W. Felix;L. Felix;N. Melo;J. H. Dutilh;Reginaldo de Carvalho
影响因子:
4.4
作者:
Paritosh K;Gupta V;Yadava SK;Singh P;Pradhan AK;Pental D
通讯作者:
Pental D
影响因子:
1.9
作者:
L. Feitoza;M. Martins;A. Castro;L. Felix;Reginaldo de Carvalho
通讯作者:
L. Feitoza;M. Martins;A. Castro;L. Felix;Reginaldo de Carvalho