QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L.

ACTA HORTICULTURAE SINICA ›› 2011, Vol. 38 ›› Issue (7): 1283-1290.

• Vegetables • Previous Articles Next Articles

QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L.

QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L. WANG Hui，SUN Ri-fei，DENG Jie，WU Jian，and WANG Xiao-wu*

（Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences,Beijing 100081,China）

Received:2011-03-27 Revised:2011-05-26 Online:2011-07-25 Published:2011-07-25
Contact: WANG Xiao-wu*

Abstract

Abstract: A permanent population BC2DH including 120 lines derived from a cross between Yellow Sarson L143 and Chinese cabbage Z16 was constructed. An integrated map of 559.08 cM with 10 linkage groups is developed based on the BC2DH population with 135 InDel（Insertion-deletion）markers. Gluconapin was detected in parents and individual of population with HPLC and consecutive distribution was observed in BC2DH population. QTL analysis identified two QTLs（NAP-QTL-A03 and NAP-QTL-A09）controlling accumulation of gluconapin in the two different seasons. NAP-QTL-A03 was mapped on A03, which explained 51.0% and 64.2% of the phenotypic variation respectively in the two seasons. And the two QTL totally explain 67.90% and 73.10% phenotypic variation respectively. On the basis of Brassica rapa genome project, we discovered NAP-QTL-A03 was AOP locus which included a key gene BrAOP2 for alkylene glucosinolate biosynthesis，while NAP-QTL-A09 maybe another candidate gene MYB28

Key words: Brassica campestris L., BC₂DH population, glucosinolate, InDel marker, linkage map, QTL

CLC Number:

S 634

QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L. WANG Hui;SUN Ri-fei;DENG Jie;WU Jian;and WANG Xiao-wu . QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L.[J]. ACTA HORTICULTURAE SINICA, 2011, 38(7): 1283-1290.

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QTL Analysis for Gluconapin Accumulation in Leaves of Brassica campestris L.

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