中南林业科技大学学报

不同种源麻竹苗期遗传变异及综合评价

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胡潇雪 ¹^,² , 农珺清 ¹ , 黄柳芝 ³ , 韦余成 ⁴ , 朱秀芬 ³ , 钟恒 ⁵ , 徐振国 ¹

中南林业科技大学学报 | 生物学 2026,46(7): 225-234

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中南林业科技大学学报 |生物学 2026 , 46 (7) : 225 -234

不同种源麻竹苗期遗传变异及综合评价

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胡潇雪¹^,², 农珺清¹, 黄柳芝³, 韦余成⁴, 朱秀芬³, 钟恒⁵, 徐振国¹

作者信息

^1.广西壮族自治区林业科学研究院　a. 广西林业实验室；b. 广西优良用材林资源培育重点实验室，广西　南宁　530002

^2.广西大学　a. 林学院；b. 国家林草局中南速生材繁育重点实验室；c. 广西高校亚热带人工林培育与利用重点实验室，广西　南宁　530004

^3.柳州市林业技术推广站，广西　柳州　545001

^4.柳州市柳南区龙汉岭林场　广西　柳州　545104

^5.柳城县林业技术推广站，广西　柳城　545200

通讯作者:

徐振国（xuopingqing@126.com），正高级工程师。

作者简介:

胡潇雪（1604681278@qq.com），硕士研究生。

Genetic variation and comprehensive evaluation of different provenances of Dendrocalamus latiflorus at seedling stage

Xiaoxue Hu¹^,², Junqing Nong¹, Liuzhi Huang³, Yucheng Wei⁴, Xiufen Zhu³, Heng Zhong⁵, Zhenguo Xu¹

Affiliations

^1.a. Guangxi Laboratory of Forestry; b. Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, Nanning 530002, Guangxi, China

^2.a. College of Forestry; b. Key Laboratory of National Forestry and Grassland Administration on Cultivation of Fast-Growing Timber in Central South China; c. Guangxi Colleges and Universities Key Laboratory for Cultivation and Utilization of Subtropical Forest Plantation, Guangxi University, Nanning 530004, China

^3.Liuzhou Forestry Technology Extension Station, Liuzhou 545001, Guangxi, China

^4.Longhanling Forestry Farm, Liunan District, Liuzhou, Liuzhou 545104, Guangxi, China

^5.Liucheng Forestry Technology Extension Station, Liucheng 545200, Guangxi, China

出版时间: 2026-07-25 doi: 10.14067/j.cnki.1673-923x.2026.07.021

文章导航

摘要

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【目的】

揭示麻竹重要经济性状的遗传基础，解析其遗传变异规律，加速推动遗传改良与精准育种进程。

【方法】

以8个不同种源地麻竹苗为研究对象（种源地代码分别为LZ-1、LZ-2、LZ-3、LZ-4、BS、YD、JY、FJ），通过观测地上部分形态、地下部分形态及生物量，解析麻竹苗期的性状变异特征并计算遗传参数，结合隶属函数综合评价法，筛选出优良种源。

【结果】

11个表型性状在不同麻竹种源间均呈现显著（P<0.05）或极显著差异（P<0.01），其中YD种源出芽数最多（8.83）；LZ-4种源展叶数、平均根长、叶面积、地径、株高均最高（分别为25.63、9.76 cm、9 566.77 mm²、19.70 mm、2.96 cm）；LZ-3种源生根数、平均根直径、根生物量、秆数均最多（分别为23.19、1.22 mm、1.20 g、1.64）；FJ种源秆生物量最大（82.93 g）。各性状遗传变异系数为0.34%～36.92%，遗传力（H²）均超过0.50，株高（0.96）、秆数（0.95）、叶面积（0.94）、地径（0.92）、出芽数（0.89）遗传力极高。相关性分析表明，出芽数与展叶数、平均根长、平均根直径、芽生物量、叶生物量呈显著（P<0.05）或极显著（P<0.01）正相关，叶面积与芽生物量、叶生物量、根生物量、总生物量、秆数呈极显著（P<0.01）正相关。各性状遗传增益表型以LZ-4种源最突出，其出芽数（2.53%）、展叶数（7.03%）、平均根长（1.84%）、芽生物量（2.56%）、叶生物量（1.24%）及地径（2.23%）等多个性状表现出正向遗传增益。基于主成分分析筛选出4个主成分，累计贡献率79.034%，涵盖了麻竹生长活性、根系发育及生物量积累等关键表型特征。综合评价结果显示，LZ-4种源综合得分最高（1.179）。

【结论】

8个种源麻竹在苗期性状上表现出差异，其中以LZ-4种源表现最佳，JY、BS、LZ-2种源次之。

关键词

麻竹 / 种源 / 生长性状 / 遗传变异 / 综合评价

Abstract

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【Objective】

To reveal the genetic basis of important economic traits in Dendrocalamus latiflorus, elucidate the patterns of genetic variation, and to accelerate the process of genetic improvement and precision breeding.

【Method】

Eight geographically diverse D. latiflorus provenances were evaluated, with provenance codes LZ-1, LZ-2, LZ-3, LZ-4, BS, YD, JY, and FJ. Seedling stage phenotypic variation was analyzed by assessing above- and below-ground morphological traits and biomass. Genetic parameters were estimated. Superior provenances were identified using membership function for comprehensive evaluation.

【Result】

11 phenotypic traits showed significant (P<0.05) or extremely significant (P<0.01) differences among different provenances of Ma bamboo (Dendrocalamus latiflorus). Among them, provenance YD had the highest number of shoots (8.83); provenance LZ-4 had the highest values for leaf expansion number, average root length, leaf area, ground diameter, and plant height (25.63, 9.76 cm, 9 566.77 mm², 19.70 mm, 2.96 cm, respectively); provenance LZ-3 had the highest number of roots, average root diameter, root biomass, and culm number (23.19, 1.22 mm, 1.20 g, 1.64, respectively); provenance FJ had the largest culm biomass (82.93±24.46 g). The genetic coefficient of variation for each trait ranged from 0.34% to 36.92%, and heritability (H²) exceeded 0.50 for all traits; heritability was extremely high for plant height (0.96), culm number (0.95), leaf area (0.94), ground diameter (0.92), and number of shoots (0.89). Correlation analysis showed that the number of bud emergence was significantly (P<0.05) or extremely significantly (P<0.01) positively correlated with leaf expansion number, mean root length, mean root diameter, bud biomass, and leaf biomass. Leaf area was extremely significantly (P<0.01) positively correlated with bud biomass, leaf biomass, root biomass, total biomass, and culm number. Regarding phenotypic genetic gain for each trait, provenance LZ-4 was the most prominent, with positive genetic gains for multiple traits, including number of shoots (2.53%), leaf expansion number (7.03%), average root length (1.84%), bud biomass (2.56%), leaf biomass (1.24%), and ground diameter (2.23%). Based on principal component analysis, four principal components were extracted, with a cumulative contribution rate of 79.034%, covering key phenotypic characteristics such as growth activity, root development, and biomass accumulation of Ma bamboo. The comprehensive evaluation results showed that provenance LZ-4 had the highest comprehensive score (1.179).

【Conclusion】

The eight provenances of Ma bamboo showed differences in seedling traits, among which provenance LZ-4 performed best, followed by JY, BS and LZ-2.

Key words

Dendrocalamus latiflorus / provenance / growth traits / genetic variation / comprehensive evaluation

引用本文

胡潇雪, 农珺清, 黄柳芝, 韦余成, 朱秀芬, 钟恒, 徐振国. 不同种源麻竹苗期遗传变异及综合评价. 中南林业科技大学学报, 2026 , 46 (7) : 225 -234 . DOI: 10.14067/j.cnki.1673-923x.2026.07.021

Xiaoxue Hu, Junqing Nong, Liuzhi Huang, Yucheng Wei, Xiufen Zhu, Heng Zhong, Zhenguo Xu. Genetic variation and comprehensive evaluation of different provenances of Dendrocalamus latiflorus at seedling stage[J]. Journal of Central South University of Forestry & Technology, 2026 , 46 (7) : 225 -234 . DOI: 10.14067/j.cnki.1673-923x.2026.07.021

基金

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广西科技重大专项(桂科AA24263024-4)
广西重点研发计划项目(桂科AB25069350)
中央财政林草科技推广示范项目(〔2025〕TG28号)
广西林科院研究团队项目(2024RT18)

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2026年第46卷第7期

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doi: 10.14067/j.cnki.1673-923x.2026.07.021

接收时间：2025-06-19
首发时间：2026-10-30
出版时间：2026-07-25

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收稿日期：2025-06-19
修回日期：2025-08-27

基金

广西科技重大专项(桂科AA24263024-4)

广西重点研发计划项目(桂科AB25069350)

中央财政林草科技推广示范项目(〔2025〕TG28号)

广西林科院研究团队项目(2024RT18)

作者信息

^1.广西壮族自治区林业科学研究院　a. 广西林业实验室；b. 广西优良用材林资源培育重点实验室，广西　南宁　530002

^2.广西大学　a. 林学院；b. 国家林草局中南速生材繁育重点实验室；c. 广西高校亚热带人工林培育与利用重点实验室，广西　南宁　530004

^3.柳州市林业技术推广站，广西　柳州　545001

^4.柳州市柳南区龙汉岭林场　广西　柳州　545104

^5.柳城县林业技术推广站，广西　柳城　545200

通讯作者:

徐振国（xuopingqing@126.com），正高级工程师。

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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