A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (6): 1209-1214.

• 研究论文 • Previous Articles Next Articles

A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage

Shen Shuxing ^{1, 2*};Hou Xilin¹;Zhang Chenghe²

(¹ State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultral University,Nangjing, Jiangsu 210095, China; ²College of Horticulture, Hebei Agricultural University, Baoding, Hebei 071001, China)

Received:2006-04-07 Revised:2006-09-05 Online:2006-12-25 Published:2006-12-25

Abstract

Abstract: Selection of primary trisomics of Chinese cabbage 〔Brassica campestris L. ssp. pekinesis (Lour) Olsson〕is an important foundation for the gene chromosome mapp ing and other genetic studies. The aneuploid plants with one extra chromosome (2n + 1) were obtained from the isolatedmicrospore cultured plantlets of the tetraploid Chinese cabbage. By karyotype analysis of the root tip metaphase chromosome, meiosis observation and plant characters investigation, a set of primary trisomics ( Tri-1, Tri-2, Tri-3, Tri-4, Tri-5, Tri-6, Tri-7, Tri-8, Tri-9 and Tri-10) was identified. Each trisomic was with some unique characters on plant morphological traits. The isolated microspore culture of tetraploid Chinese cabbage is a convenient and effective way to select trisomics in Chinese cabbage.

Key words: Chinese cabbage, Brassica campestris L. ssp. pekinesis (Lour) Olsson, Microspore, Risomics, Karyotype

CLC Number:

S634.1

Shen Shuxing;;Hou Xilin;Zhang Chenghe. A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage[J]. ACTA HORTICULTURAE SINICA, 2006, 33(6): 1209-1214.

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A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage

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