毛红椿天然群体种实性状表型多样性研究
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摘要
毛红椿是楝科香椿属植物,其生长迅速,树干通直,素有"中国桃花心木"之称,是珍贵的用材树种,具有很高的经济价值和开发前景。为系统揭示其天然群体表型变异程度和变异规律,对毛红椿天然分布区内的10个天然群体11个表型性状进行分析。采用巢式方差分析、相关分析和聚类分析等多种方法,分析群体间和群体内的表型多样性。研究结果表明,毛红椿11个种实表型性状在群体间和群体内都存在显著的差异,群体间表型分化系数为50.35%,大于群体内变异(49.65%)。果实和种子的平均变异系数分别为9.55%和10.52%,果实的变异系数较小,表明果实的稳定性要比种子的高。通过对毛红椿表型性状的聚类分析将毛红椿10个天然群体划分为4类。相关结果显示果实重量、果实长度、果宽基和种子长度是影响毛红椿表型多样性的主要因素。
Toona ciliata var. pubescens is deciduous, broad-leaved, growing fastly tree species belonging to Toona genus and Meliaceae. It is a valuable tree species, and has high economic values and developing foreground. Objectives of this paper were to investigate level of phenotypic variation between and within populations, ten natural populations of T. ciliata var. pubescens was studied. 11 cone and seed phenotypic traits of populations were analyzed and nested variance analysis, correlation analysis, cluster analysis were used to analyze phenotypic data. Significant difference of 11 phenotypic traits between and within populations were found. The mean phenotypic differentiation coefficient among populations was 50.35%, which was more than that of within populations(49.65%). The variation coeffients of cone and seed phenotypic traits were 9.55% and 10.52%, respectively. The stability of cone is higher than seed. According to UPGMA cluster analysis, the ten population of T. ciliata var. pubescens were divided into four groups. The results of correlation analysis showed that GZ, GC, GKJ and ZC were the most important phenotypic traits affect on phenotypic diversity of T. ciliata var. pubescens.
Toona ciliata var. pubescens is deciduous, broad-leaved, growing fastly tree species belonging to Toona genus and Meliaceae. It is a valuable tree species, and has high economic values and developing foreground. Objectives of this paper were to investigate level of phenotypic variation between and within populations, ten natural populations of T. ciliata var. pubescens was studied. 11 cone and seed phenotypic traits of populations were analyzed and nested variance analysis, correlation analysis, cluster analysis were used to analyze phenotypic data. Significant difference of 11 phenotypic traits between and within populations were found. The mean phenotypic differentiation coefficient among populations was 50.35%, which was more than that of within populations(49.65%). The variation coeffients of cone and seed phenotypic traits were 9.55% and 10.52%, respectively. The stability of cone is higher than seed. According to UPGMA cluster analysis, the ten population of T. ciliata var. pubescens were divided into four groups. The results of correlation analysis showed that GZ, GC, GKJ and ZC were the most important phenotypic traits affect on phenotypic diversity of T. ciliata var. pubescens.
引文
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[12] Lucy Gitonga, Esther Kahangi, Anne Muigai, Kamau Ngamau, Simon Gichuki, Wilson Cheluget, Simon Wepukhulu(2008). Assessment of phenotypic diversity of macadamia.(Macadamia spp.)germplasm in Kenya using leaf and fruit morphology[J]. African Journal of Plant Science, 2(9):086-093.
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[14]王娅丽,李毅.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,2008,32(2):355-362.
[15]罗建勋,李晓清,孙鹏,等.云杉天然群体的表型变异[J].东北林业大学学报,2003,31(1):9-11.
[16]陈丽华,姜景民,栾启福,等.乌药种子性状产地表型变异研究[J].浙江林业科技,2005,25(1):9-12.
[17]陈益泰,李桂英,王惠雄.桤木自然分布区内表型变异的研究[J].林业科学研究,1999,12(4):379-385.
[18]任华东,姚小华.樟树种子性状产地表型变异研究[J].江西农业大学学报,2000,22(3):370-375.
[19] Daniel H, Andrew G C.1989. Principles of population genetics[M]. USA:Sinauer Associates, Inc:670.
[20]张彩霞,明军,刘春,等.岷江百合天然群体的表型多样性[J].园艺学报,2008,35(8):1183-1188.
[21]张含国,孙立夫,韩继凤,等.红皮云杉群体遗传多样的研究[J].植物研究,2003,23(2):224-229.
[2]刘军,孙宗修,陈益泰,等.珍稀濒危树种毛红椿微卫星DNA分离及SSR反应体系优化[J].中国生物工程杂志,2006,26(12):50-55.
[3]楼炉焕,金水虎.浙江古田山自然保护区珍稀濒危植物区系的研究[J].北京林业大学学报,2000,22(5):33-39.
[4]张光富.安徽珍稀濒危植物及其保护[J].安徽师范大学学报,2000,23(1):36-39.
[5]邹高顺.珍贵速生树种红椿与毛红椿引种栽培研究[J].福建林学院学报,1994,14(3):271-276.
[6]胡松竹,张露,杜天真,等.晾晒对毛红椿苗木活力的影响[J].江西农业大学学报,2004,26(5):666-669.
[7]沈伟兴,吴道圣.毛红椿播种育苗技术[J].林业实用技术,2006(4):24-24.
[8]刘军,陈益泰,何贵平,等.毛红椿优树子代苗期性状遗传变异研究[J].江西农业大学学报,2008,30(1):62-67.
[9]闻爱民,陈文新.苜蓿、草木樨、锦鸡儿根瘤菌的表型多样性分析[J].生物多样性,1999,7(2):1-8.
[10]李斌,顾万春,卢宝铭.白皮松天然群体种实性状表型多样性研究[J].生物多样性,2002,10(2):181-187.
[11]罗建勋,顾万春.云杉天然群体表型多样性研究[J].林业科学,2005,41(2):66-73.
[12] Lucy Gitonga, Esther Kahangi, Anne Muigai, Kamau Ngamau, Simon Gichuki, Wilson Cheluget, Simon Wepukhulu(2008). Assessment of phenotypic diversity of macadamia.(Macadamia spp.)germplasm in Kenya using leaf and fruit morphology[J]. African Journal of Plant Science, 2(9):086-093.
[13]李文英,顾万春.蒙古栎天然群体表型多样性研究[J].林业科学,2005,41(1):49-56.
[14]王娅丽,李毅.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,2008,32(2):355-362.
[15]罗建勋,李晓清,孙鹏,等.云杉天然群体的表型变异[J].东北林业大学学报,2003,31(1):9-11.
[16]陈丽华,姜景民,栾启福,等.乌药种子性状产地表型变异研究[J].浙江林业科技,2005,25(1):9-12.
[17]陈益泰,李桂英,王惠雄.桤木自然分布区内表型变异的研究[J].林业科学研究,1999,12(4):379-385.
[18]任华东,姚小华.樟树种子性状产地表型变异研究[J].江西农业大学学报,2000,22(3):370-375.
[19] Daniel H, Andrew G C.1989. Principles of population genetics[M]. USA:Sinauer Associates, Inc:670.
[20]张彩霞,明军,刘春,等.岷江百合天然群体的表型多样性[J].园艺学报,2008,35(8):1183-1188.
[21]张含国,孙立夫,韩继凤,等.红皮云杉群体遗传多样的研究[J].植物研究,2003,23(2):224-229.