Identification of QTLs for Cadmium Tolerance During Seedling Stage and Validation of qCDSL1 in Rice

• 作者: DING Shilin FANG Guonan GAO Zhenyu GUO Longbiao JIANG Hongzhen LIU Chaolei QIAN Qian RUAN Banpu SHANG Lianguang TIAN Biao YANG Shenglong YE Guoyou ZHANG Anpeng
• 来源期刊: 水稻科学（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: Research Papers
• 页码范围: 81-88,中插32-中插36
• 页数: 1页
• 语种: 英文

摘要

Cadmium (Cd) is a non-essential toxic metal that is harmful to plants. To investigate the genetic mechanism of Cd tolerance in rice, quantitative trait loci (QTLs) associated with Cd tolerance at the seedling stage were analyzed using a recombinant inbred line (RIL) population derived from a cross between PA64s and 93-11. A total of 36 QTLs associated with shoot length, root length, shoot dry weight, root dry weight and total dry weight were detected in Hangzhou and Lingshui of China. Among them, 15 QTLs were identified under the control condition and 15 QTLs were identified under the Cd stress condition, and 6 QTLs for Cd tolerant coefficient were detected on chromosomes 1, 3, 7 and 9. The qCDSL1.1 and qCDSL1.2 were identified in Hangzhou and Lingshui, respectively, and had overlapping intervals on chromosome 1. To further confirm the effects of qCDSL1.1 and qCDSL1.2, we developed a chromosome segment substitution line (CSSL), CSSLqCDSL1, in 93-11 background harboring qCDSL1.1/qCDSL1.2 from PA64s. Compared to 93-11, CSSLqCDSL1 had increased shoot length under the Cd stress condition. These results pave the way for further isolation of those genes controlling Cd tolerance in rice and marker-assistant selection of rice elite varieties with Cd tolerance.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	DING Shilin	中国农业科学院中国水稻研究所	1	0	0.0	0.0
2	LIU Chaolei	中国农业科学院中国水稻研究所	1	0	0.0	0.0
3	SHANG Lianguang	中国农业科学院中国水稻研究所	1	0	0.0	0.0
4	YANG Shenglong	中国农业科学院中国水稻研究所	1	0	0.0	0.0
5	ZHANG Anpeng	中国农业科学院中国水稻研究所	1	0	0.0	0.0
6	JIANG Hongzhen	中国农业科学院中国水稻研究所	1	0	0.0	0.0
7	RUAN Banpu	中国农业科学院中国水稻研究所	1	0	0.0	0.0
8	FANG Guonan	中国农业科学院中国水稻研究所	1	0	0.0	0.0
9	TIAN Biao	中国农业科学院中国水稻研究所	1	0	0.0	0.0
10	YE Guoyou	中国农业科学院中国水稻研究所	2	0	0.0	0.0
11	GUO Longbiao	中国农业科学院中国水稻研究所	2	0	0.0	0.0
12	QIAN Qian	中国农业科学院中国水稻研究所	3	0	0.0	0.0
13	GAO Zhenyu	中国农业科学院中国水稻研究所	1	0	0.0	0.0