Phenotypic Polymorphism of Litsea mollis Hemsl in West Sichuan Province

JIA Chun-hong; ZHANG Li; WEI Xiao; YU Jun; LI Mei

Objective In order to provide some references for Litsea mollis Hemsl germplasm resource's preservation, utilization and selection, the phenotypic traits of L. mollis in West Sichuan Province were investigated to understand the phenotypic variation degree and variation regularity. Method 56L. mollis. individuals in West Sichuan Province were randomly selected. 13 phenotypic traits, such as the fruits, leaves, and seeds, were compared and analyzed. The variable coefficient, variance analysis, correlation analysis and principal components analysis were used to explore the phenotypic polymorphism of L. mollis in West Sichuan Province. Result The results are as follows.(1) The variation coefficient analysis and variance analysis showed that the phenotypic traits of L. mollis existed rich genetic differences, and had great variation in test area. Among them, the variation coefficient of 100 fruit weight was the maximum(15.93%); the variation coefficient of fruit shape index was the minimum(2.31%).(2) In correlation analysis, there existed highly significant difference or significant difference among traits.(3) The principle component analysis showed that fruit longitudinal diameter, fruit equatorial diameter, 100 fruit weight, seed longitudinal diameter, seed equatorial diameter, 100 seed weight were the dominant factors influencing the phenotypic polymorphism of L. mollis. Conclusion The phenotypic traits of L. mollis existed rich genetic differences, and had great variation in test area. Epharmony exist among the phenotypic traits. 6 phenotypic traits as fruit longitudinal diameter were the dominant factors influencing the phenotypic polymorphism of L. mollis.

1. College of Forestry, Sichuan Agricultural University, Chengdou 611130, Sichuan, China

2. College of Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China

Received Date: 2015-01-26

Abstract: Objective In order to provide some references for Litsea mollis Hemsl germplasm resource's preservation, utilization and selection, the phenotypic traits of L. mollis in West Sichuan Province were investigated to understand the phenotypic variation degree and variation regularity. Method 56L. mollis. individuals in West Sichuan Province were randomly selected. 13 phenotypic traits, such as the fruits, leaves, and seeds, were compared and analyzed. The variable coefficient, variance analysis, correlation analysis and principal components analysis were used to explore the phenotypic polymorphism of L. mollis in West Sichuan Province. Result The results are as follows.(1) The variation coefficient analysis and variance analysis showed that the phenotypic traits of L. mollis existed rich genetic differences, and had great variation in test area. Among them, the variation coefficient of 100 fruit weight was the maximum(15.93%); the variation coefficient of fruit shape index was the minimum(2.31%).(2) In correlation analysis, there existed highly significant difference or significant difference among traits.(3) The principle component analysis showed that fruit longitudinal diameter, fruit equatorial diameter, 100 fruit weight, seed longitudinal diameter, seed equatorial diameter, 100 seed weight were the dominant factors influencing the phenotypic polymorphism of L. mollis. Conclusion The phenotypic traits of L. mollis existed rich genetic differences, and had great variation in test area. Epharmony exist among the phenotypic traits. 6 phenotypic traits as fruit longitudinal diameter were the dominant factors influencing the phenotypic polymorphism of L. mollis.

HTML

Reference (19)

[1]	顾万春.统计遗传学[M].北京:科学出版社,2004.
[2]	黄勇,谢一青,李志真,等.小果油茶表型多样性分析[J].植物遗传资源学报,2014,15(2):270-278.
[3]	李毅,王娅丽.祁连山青海云杉天然群体的种实性状表型多样性[J].植物生态学报,2008(2):355-363.
[4]	中国科学院中国植物志编辑委员会.中国植物志(第31卷)[M].北京:科学出版社,1982:282.
[5]	周永丽,万军.毛叶木姜子优良单株选择初报[J].四川林业科技,2008,29(4):46-47.
[6]	周天达.毛叶木姜子花挥发油及其镇咳祛痰作用的研究[J].现代应用药学,1995,12(3):16-17.
[7]	杨得坡,王发松.毛叶木姜子叶挥发油化学成分的研究[J].中国药学杂志,2000,35(3):156-157.
[8]	邓家盛.毛叶木姜子人工栽培及提油试验[J].四川林业科技,1989,10(1):69-71.
[9]	田胜平,陈益存,韩小娇,等.山苍子天然种群叶片和种实性状的表型多样性[J].生态学杂志,2012,31(7).
[10]	王金星,潘刚,王滑,等.西藏核桃叶片和坚果表型多样性及其相关关系研究[J].林业科学研究,2012,25(2):236-240.
[11]	赵献民,江锡兵,龚榜初,等.山桐子自然群体表型性状变异分析[J].林业科学研究,2013(1):113-117.
[12]	杨超伟,侯元凯,黄琳,等.不同种源文冠果果实及种子表型性状变异的研究[J].中南林业科技大学学报,2013(7):20-24.
[13]	牟洪香,候新村,刘巧哲.木本能源植物文冠果的表型多样性研究[J].林业科学研究,2007,20(3):350-355.
[14]	万继锋,吴如健,韦晓霞,等.橄榄种质资源叶片表型性状多样性分析[J].热带作物学报, 2012,33(6):975-980.
[15]	王萌.丹参种质资源鉴定及遗传多样性研究.四川农业大学,2013.
[16]	邓子牛,李先信,杨迎花,等.湖南柚种质资源的遗传多样性和亲缘关系[J].湖南农业大学学报:自然科学版,2013(4):363-370.
[17]	Chen X S, Feng T, ZhangY M,et al,Genetic diversity in Malus sievenii(Lebed.) RoemⅢ.Genetic diversity of volatile components in M.sieversii[J]. Acta Genetica Sinica, 2007, 34(2):171-179.
[18]	张元燕,虞木奎,方炎明.麻栎不同种源的表型性状变异分析[J].植物资源与环境学报,2014,23(3)36-44.
[19]	瞿文林,段曰汤,马开华,等.余甘子天然居群果实形态变异研究[J].西北植物学报,2012,32(12):2444-2449.

Phenotypic Polymorphism of Litsea mollis Hemsl in West Sichuan Province

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views