2年生桉树杂交种生长与抗风的遗传变异研究

草业学报 ›› 2009, Vol. 18 ›› Issue (6): 91-97.

2年生桉树杂交种生长与抗风的遗传变异研究

罗建中^1,2,谢耀坚²,曹加光²,卢万鸿²,任世奇²

1.南京林业大学, 江苏南京 210037;
2.国家林业局桉树研究开发中心, 广东湛江 524022

收稿日期:2009-03-23 出版日期:2009-12-20 发布日期:2009-12-20
作者简介:罗建中(1969-),男,江西鹰潭人,高级工程师。E-mail:Luojianzh@21cn.com
基金资助:
国家“十一五”科技支撑项目(2006BAD01A1504),国家“十一五”科技支撑项目(2006BAD03A0107)和国家林业局林业科学技术研究项目(2006-09)资助。

Genetic variation in 2-year Eucalypt hybrids’ growth and typhoon resistance

LUO Jian-zhong^1,2, XIE Yao-jian², CAO Jia-guang², LU Wan-hong², REN Shi-qi²

1.Nanjing Forestry University, Nanjing 210037, China；
2.China
Eucalypt Research Centre, Zhanjiang, 524022

Received:2009-03-23 Online:2009-12-20 Published:2009-12-20

摘要/Abstract

摘要： 以2×10的析因交配桉树杂交种为研究材料,杂种的母本为尾叶桉和细叶桉,父本为巨桉、粗皮桉、细叶桉和尾叶桉。对27个月生杂交种的材积生长、抵抗风速为18和40 m/s台风的抗风指数(WR₁和WR₂)的研究表明,材积生长在母本间差异不显著(P＞0.05),但在父本间、母本与父本的交互作用间差异显著(P＜0.05);WR₁在父、母本间均存在显著差异(P＜0.05),WR₂只在父本间差异显著(P＜0.05)。在材积生长上,巨桉作为父本具有高的一般配合力,T1×G2、 U1×P3具有高的特殊配合力;在抗风指数上, G1、G2和P2作为父本分别对WR₁和WR₂具有高的一般配合力。材积生长性状受加性基因和显性基因的控制,狭义和广义遗传力分别为0.14~0.17和0.30~0.36;抗风指数受加性基因控制,遗传力为0.10~0.11。以尾叶桉为母本的子代材积生长性状遗传力高于细叶桉母本的子代、抗风指数的遗传力高于细叶桉母本的子代;材积生长性状与WR₁总体上呈显著正相关(P＜0.05),与WR₂呈显著负相关(P＜0.05)。

Abstract: Using a 2×10 factorial mating’s eucalypt hybrids as material: Female parents are Eucalyptus urophylla and Eucalyptus tereticornis,male parents are Eucalyptus grandis, Eucalyptus pellita, E. urophylla and E. tereticornis. The 27-month tree stem volume growth and resistance index to typhoon with speed of 18 and 40 m/s (WR₁ and WR₂) were studied on the hybrids respectively. The results showed: For growth traits, there were no significant difference between female parents (P＞0.05). Significant differences were exist between male parents, between the interaction of female and male parents (P＜0.05). There were significant differences (P＜0.05) between female parents, betweens male parents for WR₁(P＜0.05). WR₂ was only significantly different (P＜0.05) between male parents. For tree volume growth, E. grandis had high general combining ability (GCA) as male parents, combination: T1×G2 and U1×P3 had high special combining ability (SCA); For typhoon resistance, G1, G2 and P2 had high GCA on WR₁ and WR₂ as male parents respectively. Tree volume growth traits were controled by additive gene action and dominance gene action together, their narrow sence and board sence heritabilities were 0.14-0.17 and 0.30-0.36; typhoon resistance index only controled by additive gene action, their heritabilities were 0.10-0.11. The growth traits’ heritability of progenies of E. urophylla as female parent were lower than that of E. tereticornis. But their heritabilities of typhoon resistance were higher than that of E. tereticornis. Volume growth traits generally had significant positive genetic correlation (P＜0.05) with WR₁. But had significant (P＜0.05) negative genetic correlation with WR₂.

中图分类号:

罗建中,谢耀坚²,曹加光²,卢万鸿²,任世奇². 2年生桉树杂交种生长与抗风的遗传变异研究[J]. 草业学报, 2009, 18(6): 91-97.

LUO Jian-zhong, XIE Yao-jian, CAO Jia-guang, LU Wan-hong, REN Shi-qi. Genetic variation in 2-year Eucalypt hybrids’ growth and typhoon resistance[J]. Acta Prataculturae Sinica, 2009, 18(6): 91-97.

参考文献

[1] Eldridge K G, David J, Harwood C E, et al. Eucalypt Domestication and Breeding[M]. Oxford: Clarendon Press, 1993.
[2] Brad M P, Heidis D. Interspecific hybridization of Eucalyptus: Key issues for breeders and geneticists[J]. New Forests, 2004, 27: 115-138.
[3] Retief E C L, Stanger T K. Genetic control of wood density and bark thickness, and their correlations with diameter in pure and hybrid populations of Eucalyptus grandis and Eucalyptus urophylla in South Africa[A]. Eucalypts and Diversity: Balancing Productivity and Sustainability[C]. South Africa, Durban, 2007.
[4] 吴坤明, 吴菊英, 甘四明. 桉树杂交育种及杂种优势的利用简介[J]. 广东林业科技, 2001, 4: 700-707.
[5] 吴坤明, 吴菊英, 甘四明, 等. 桉树种间杂种的比较和选择研究[J]. 林业科学研究, 2002, 1: 1-6.
[6] 朱成庆. 雷州半岛桉树无性系抗风性的研究[J]. 林业科学研究, 2006, 19(4): 532-536.
[7] 王国祥. 桉树抗风性状的间接选择[A]. 见: 林业部科技司. 林业部青年学术讨论会论文集[C]. 北京: 中国林业出版社, 1997. 14-23.
[8] 北冕和黑格比路径图[EB/OL]. 温州台风网, http://www. wztf121. com, 2008-08-08, 2008-09-25.
[9] Williams E R, Heng S, Nguyen A, et al. Data Plus[M]. Canberra: CSIRO Forestry and Forest Products, 2000.
[10] Williams E R, Matheson A C, Harwood C E. Experimental Design and Analysis for Use in Tree Improvement (2nd Edition)[M]. Melbourne: CSIRO, 2002.
[11] SAS Institute. T SAS/STAT User’s Guide (Version 8)[M]. Cary, NC, USA: SAS Institute, 1999.
[12] Payne R W, Lane P W, Ainsley A E, et al. Genstat 5 Reference Manual[M]. New York: Oxford University Press, 1987.
[13] Fan X M, Tan J, Huang B H. Analyses of Combining Ability and Heterotic Groups of Yellow Grain Quality Protein Maize Inbreds[C]. Nairobi, Kenya: Seventh Eastern and Southern Africa Regional Maize Conference, 2001. 143-148.
[14] Karkleliene R, Bobinas E, Staniene G. Combining ability of morphological traits and biochemical parameters in carrot (Daucus sativus) CMS lines[J]. Biologija, 2005, (3): 15-18.
[15] Mohammed M I,Talib N H. Heterosis and combining ability for quality traits in forage sorghum[J]. Australian Journal of Basic and Applied Sciences, 2008, 2(1): 99-104.
[16] Ashokkumar K, Ravikesavan R. Genetic studies of combining ability estimates for seed oil, seed protein and fibre quality traits in upland Cotton (G. Hirsutum)[J]. Research Journal of Agriculture and Biological Sciences, 2008, 4(6): 798-802.
[17] 梁坤南, 白嘉雨. 尾叶桉种源-家系生长与抗风性选择[J]. 林业科学研究, 2003, 16(6): 700-707.
[18] Luo J, Arnold R J, Aken K. Genetic variation in growth and typhoon resistance in Eucalyptus pellita in southwestern China[J]. Australian forestry, 2006, 69: 38-47.
[19] 袁学军, 王志勇, 郭爱桂, 等. 假俭草侧芽愈伤诱导和植株再生[J]. 草业学报, 2008, 17(6): 128-133.
[20] 宋瑜, 金睴, 曹宗英, 等. 植物对重金属镉的响应及其耐受机理[J]. 草业学报, 2008, 17(5): 84-91.
[21] 阎君, 刘建秀. 草类植物耐铝性的研究进展[J]. 草业学报, 2008, 17(6): 148-155.
[22] 郑青松, 华春, 董鲜, 等. 盐角草幼苗对盐离子胁迫生理响应的特性研究[J]. 草业学报, 2008, 17(6): 164-168.