棉花种质资源萌发期耐盐性鉴定及筛选

doi:10.3724/SP.J.1006.2024.34148

作物学报 ›› 2024, Vol. 50 ›› Issue (5): 1147-1157.doi: 10.3724/SP.J.1006.2024.34148

• 作物遗传育种·种质资源·分子遗传学 • 上一篇下一篇

棉花种质资源萌发期耐盐性鉴定及筛选

李航¹^,^2**(), 刘丽^2**(), 黄乾¹^,², 刘文豪², 司爱君², 孔宪辉², 王旭文², 赵福相², 梅拥军¹^,^*(), 余渝²^,^*()

¹塔里木大学农学院, 新疆阿拉尔 843300
²新疆农垦科学院棉花研究所 / 农业农村部西北内陆区棉花生物学与遗传育种重点实验室, 新疆石河子 832000

收稿日期:2023-08-31 接受日期:2023-10-23 出版日期:2024-05-12 网络出版日期:2024-02-06
通讯作者: *梅拥军, E-mail: xnmeiyj@126.com; 余渝, E-mail: xjyuyu021@sohu.com
作者简介:李航, E-mail: 1298044524@qq.com;
刘丽, E-mail: cottonliuli@sina.com第一联系人：
**同等贡献
基金资助:
新疆生产建设兵团第三师重大科技计划项目(KY2022ZD02);新疆生产建设兵团第三师科技创新人才项目(KJ2023PT01);棉花生物学国家重点实验室开放课题(CB2022A27)

Identification and screening of salt tolerance of cotton germplasm resources at germination stage

LI Hang¹^,^2**(), LIU Li^2**(), HUANG Qian¹^,², LIU Wen-Hao², SI Ai-Jun², KONG Xian-Hui², WANG Xu-Wen², ZHAO Fu-Xiang², MEI Yong-Jun¹^,^*(), YU Yu²^,^*()

¹College of Agriculture, Tarim University, Alar 843300, Xinjiang, China
²Cotton Research Institute, Xinjiang Academy Agricultural and Reclamation Science / Northwest Inland Region Key Laboratory of Cotton Biology and Genetic Breeding (Xinjiang), Ministry of Agriculture and Rural Affairs, Shihezi 832000, Xinjiang, China

Received:2023-08-31 Accepted:2023-10-23 Published:2024-05-12 Published online:2024-02-06
Contact: *E-mail: xnmeiyj@126.com; E-mail: xjyuyu021@sohu.com
About author:First author contact:
**Contributed equally to this work
Supported by:
Major science and Technology Plan Project of the Third Division of the Xinjiang Production and Construction Corps(KY2022ZD02);Science and Technology Innovation Talent Project of the Third Division of Xinjiang Production and Construction Corps(KJ2023PT01);State Key Laboratory of Cotton Biology(CB2022A27)

摘要/Abstract

摘要：

种子萌发期是对盐分较敏感的时期, 测定不同盐浓度胁迫下的棉花种子发芽情况是筛选棉花耐盐种质的重要依据之一。本研究对629份棉花种质资源进行0、150 mmol L^-1NaCl处理, 对鲜重、发芽势等6个性状的耐盐系数进行差异分析, 结果显示盐胁迫下各个性状较对照均存在显著差异; 使用主成分分析、隶属函数分析对棉花种质耐盐性进行综合评价; 对综合评价值D值进行聚类分析, 根据D值的大小将629份种质资源分成5类: 188份耐盐中间型材料、376份耐盐型材料、36份高耐盐型材料、28份盐敏感型材料、1份高盐敏感型材料; 通过逐步回归分析建立棉花萌发期耐盐性评价预测模型: D = 0.277RFW+0.29RGP+0.189RPL+0.387RGR-0.32 (R²=0.992), 筛选出鲜重、下胚轴长、发芽势和发芽率4个指标可作为棉花萌发期耐盐性鉴定的指标。本研究建立了一套精准、高效的耐盐性鉴定体系, 筛选到36份高耐盐材料和1份高敏感材料, 为棉花耐盐机制研究和培育耐盐新品种提供参考。

关键词: 棉花, 萌发期, 耐盐性, 综合评价

Abstract:

Seed germination stage is sensitive to salt. The determination of cotton seed germination under different salt concentration stress is one of the important bases for screening cotton salt-tolerant germplasm. In this study, 629 cotton germplasm resources were treated with 0 mmol L^-1 and 150 mmol L^-1 NaCl, and the salt tolerance coefficients of 6 traits such as fresh weight and germination potential were analyzed. The results showed that there were significant differences in each trait under salt stress compared with the control. Principal component analysis and membership function analysis were used to comprehensively evaluate the salt tolerance of cotton germplasm. Cluster analysis was carried out on the comprehensive evaluation value (D-value), and 629 germplasm resources were divided into 5 categories according to the D-value: 188 medium salt-tolerant materials, 376 salt-tolerant materials, 36 high salt-tolerant materials, 28 salt-sensitive materials, 1 high salt-sensitive material. A prediction model for salt tolerance evaluation of cotton at germination stage was established by stepwise regression analysis: D = 0.277RFW + 0.29RGP + 0.189RPL + 0.387RGR-0.32 (R²=0.992). Four indexes of fresh weight, hypocotyl length, germination potential, and germination rate were selected as the indexes of salt tolerance identification in cotton germination stage. In this study, a set of accurate and efficient salt tolerance identification system was established, and 4 high salt-tolerant materials and 1 high salt-sensitive material were screened, which providing the reference for the study of salt tolerance mechanism and the cultivation of new salt tolerant varieties in cotton.

Key words: cotton, germination stage, salt tolerance, comprehensive evaluation

李航, 刘丽, 黄乾, 刘文豪, 司爱君, 孔宪辉, 王旭文, 赵福相, 梅拥军, 余渝. 棉花种质资源萌发期耐盐性鉴定及筛选[J]. 作物学报, 2024, 50(5): 1147-1157.

LI Hang, LIU Li, HUANG Qian, LIU Wen-Hao, SI Ai-Jun, KONG Xian-Hui, WANG Xu-Wen, ZHAO Fu-Xiang, MEI Yong-Jun, YU Yu. Identification and screening of salt tolerance of cotton germplasm resources at germination stage[J]. Acta Agronomica Sinica, 2024, 50(5): 1147-1157.

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处理 Treatment		参数 Parameter	鲜重 Fresh weight (g)	幼苗全长 Seedlings length (cm)	胚根长 Root length (cm)	下胚轴长Hypocotyl length (cm)	发芽势 Germination potential (%)	发芽率 Germination rate (%)
对照		最大值Max.	0.85	25.59	15.18	12.60	1.00	1.00
Control		最小值Min.	0.39	10.75	5.29	3.93	0.71	0.79
		平均值Average	0.61	17.35	10.09	7.26	0.97	0.98
	标准差SD		0.07	2.22	1.57	1.31	0.04	0.03
	变异系数CV (%)		12.21	12.79	15.55	18.01	4.52	2.79
盐处理	最大值Max.		0.69	18.19	11.98	8.82	1.00	1.00
Salt treatment	最小值Min.		0.18	3.78	2.09	1.42	0.14	0.37
	平均值Average		0.42	10.88	6.73	4.15	0.81	0.88
	标准差SD		0.07	2.14	1.50	1.17	0.10	0.08
	变异系数CV (%)		16.81	19.64	22.35	28.12	12.98	8.96
较对照变化	变化值Variation		-0.19	-6.47	-3.36	-3.11	-0.16	-0.10
Comparison with the control	变化百分比 Percentage of variation (%)		-31.57	-37.27	-33.30	-42.78	-16.52	-9.93

系数 Coefficient	相对鲜重 RFW	相对幼苗全长 RSL	相对胚根长 RRL	相对下胚轴长 RHL	相对发芽势 RGP	相对发芽率 RGR
最大值Max.	1.08	1.05	1.31	1.41	1.13	1.13
最小值Min.	0.31	0.24	0.22	0.20	0.19	0.42
平均值Average	0.69	0.63	0.68	0.58	0.83	0.90
标准差SD	0.11	0.13	0.17	0.17	0.11	0.08
变异系数CV (%)	16.02	19.83	25.13	29.12	12.65	8.57

性状 Trait	相对鲜重 RFW	相对幼苗全长 RSL	相对胚根长 RRL	相对下胚轴长 RHL	相对发芽势 RGP	相对发芽率 RGR
相对鲜重RFW	1
相对幼苗全长RSL	0.762^**	1
相对胚根长RRL	0.485^**	0.803^**	1
相对下胚轴长RHL	0.688^**	0.656^**	0.106^**	1
相对发芽势RGP	0.174^**	0.124^**	0.093^*	0.112^**	1
相对发芽率RGR	0.194^**	0.141^**	0.147^**	0.077	0.771^**	1

指标名称 Item name	特征向量 Eigen vector
指标名称 Item name	PC1	PC2	PC3
相对鲜重 RFW	0.875	-0.166	0.192
相对幼苗全长 RSL	0.935	-0.260	-0.150
相对胚根长 RRL	0.699	-0.162	-0.691
相对下胚轴长 RHL	0.709	-0.215	0.634
相对发芽势 RGP	0.371	0.864	0.050
相对发芽率 RGR	0.389	0.857	-0.031
特征值Eigen value	2.919	1.649	0.942
贡献率Contribution ratio (%)	48.65	27.48	15.71
累计贡献率Cumulative contribution ratio (%)	48.65	76.13	91.84
权重Weight	0.530	0.299	0.171

编号 Code	种质 Germpalsm name	D值 D-value	排名 Rank	编号 Code	种质 Germpalsm name	D值 D-value	排名 Rank
ST542	天云07164 Tianyun 07164	0.824	1	ST480	86-27	0.728	19
ST624	晋棉25 Jinmian 25	0.818	2	ST548	河南抗黄 Henankanghuang	0.728	20
ST620	冀棉19 Jimian 19	0.817	3	ST566	Sic74	0.721	21
ST450	14-23*9-2	0.812	4	ST584	惠远14 Huiyuan 14	0.720	22
ST83	中棉所17 Zhongmiansuo 17	0.771	5	ST603	44-35	0.719	23
ST210	苏棉11 Sumian 11	0.770	6	ST175	鲁棉29 Lumian 29	0.718	24
ST40	新陆中3号 Xinluzhong 3	0.768	7	ST144	苏棉10号 Sumian 10	0.716	25
ST221	皖棉8号 Wanmian 8	0.761	8	ST347	鄂岱棉 Edaimian	0.713	26
ST219	宛棉1号 Wanmian 1	0.760	9	ST582	惠远12 Huiyuan 12	0.713	27
ST154	晋中200 Jinzhong 200	0.758	10	ST189	宁棉7号 Ningmian 7	0.709	28
ST486	9-8*41-79	0.755	11	ST216	苏棉19 Sumian 19	0.709	29
ST622	锦棉5号 Jinmian 5	0.751	12	ST26	冀棉3号 Jimian 3	0.708	30
ST15	辽棉9号 Liaomian 9	0.750	13	ST503	ZB0848	0.706	31
ST312	新陆中20 Xinluzhong 20	0.748	14	ST426	标杂A父本 Biaoza A male parent	0.704	32
ST586	新石K25 Xinshi K25	0.748	15	ST88	晋棉8号 Jinmian 8	0.703	33
ST225	协作2号 Xiezuo 2	0.733	16	ST207	泗阳331 Siyang 331	0.703	34
ST305	新陆中34 Xinluzhong 34	0.730	17	ST208	苏棉6号 Sumian 6	0.699	35
ST194	陕401 Shaan 401	0.729	18	ST531	C2	0.698	36

棉花种质资源萌发期耐盐性鉴定及筛选

Identification and screening of salt tolerance of cotton germplasm resources at germination stage

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