马尾松测交系杂交子代生长性状遗传分析

doi:10.11707/j.1001-7488.20080112

林业科学 ›› 2008, Vol. 44 ›› Issue (1): 70-76.doi: 10.11707/j.1001-7488.20080112

马尾松测交系杂交子代生长性状遗传分析

金国庆¹ 秦国峰¹ 刘伟宏² 储德裕² 洪苏州² 周志春¹

(1. 中国林业科学研究院亚热带林业研究所富阳 311400； 2. 浙江省淳安县姥山林场淳安 311700)

收稿日期:2006-11-21 修回日期:1900-01-01 出版日期:2008-01-25 发布日期:2008-01-25

Genetic Analysis of Growth Traits on Tester Strain Progeny of Pinus massoniana

Jin Guoqing¹,Qin Guofeng¹,Liu Weihong²,Chu Deyu²,Hong Suzhou²,Zhou Zhichun¹

(1. Research Institute of Subtropical Forestry, CAF Fuyang 311400; 2. Laoshan Forest Farm of Chun'an County, Zhejiang Province Chun'an 311700)

Received:2006-11-21 Revised:1900-01-01 Online:2008-01-25 Published:2008-01-25

摘要/Abstract

摘要：

利用设置在浙江省淳安县2份不同测交系交配设计子代遗传测定林材料，对马尾松生长性状进行遗传分析。结果表明：2份测定材料的树高、胸径和材积等生长性状的一般配合力(GCA)和特殊配合力(SCA)效应都极为显著。在材料Ⅰ（杂交亲本为随机选择）中，生长性状的遗传控制是以加性基因效应为主，显性基因效应次之；而材料Ⅱ（杂交亲本经过生长选择）中正好相反，显性基因效应起主导作用，加性基因效应次之。根据2份材料材积的GCA效应值，各选出4个优良母本和2个优良父本，而基于杂交组合材积配合力总效应值（TCA），2份材料各初选出10个优良杂交组合，其平均材积增益分别是测验群体的32.20%和33.90%，是对照的52.44%和103.69%。2份材料树高、胸径和材积的全同胞家系遗传力值很高，分别为0.881 9、0.917 3和0.920 4，与0.561 4、0.664 3和0.676 9，说明马尾松生长性状受较强的遗传控制。

关键词: 马尾松, 测交系, 子代测定, 配合力, 遗传力

Abstract:

Progenies of two test materials grown in Chun'an county of Zhejiang Province derived from different Pinus massonianatester strains were used for genetic analysis of growth traits. The 11year old progeny of test materialⅠwas derived from randomly selected parents and the 10 year old progeny of test materialⅡwas derived from superior parents. Results showed that general combining ability (GCA) and specific combining ability (SCA) of the two materials were significant effective in tree height, DBH and stem volume. For test material Ⅰ, growth traits of test material Ⅰ were controlled mainly by additive gene effects and secondly by the dominant gene effects. To the contrast, growth traits of test material Ⅱ were controlled mainly by the dominant gene effects and secondly by the additive gene effects. Based on the GCA value of stem volume, 4 superior female parents and 2 superior male parents were selected for the two test materials respectively. Based on total combining ability(TCA) value of stem volume for different crosses, 10 superior combinations were selected for the two test materials respectively, and their average gains of stem volume were 32.20% and 33.90% respectively compared with the test material mean, 52.44% and 103.69% respectively compared with local commercial variety. For the two test materials, fullsib family heritability for height, DBH and volume was 0.881 9, 0.917 3 and 0.920 4, and 0.561 4, 0.664 3 and 0.676 9 respectively, indicating that these growth traits were under strong genetic control.

Key words: Pinus massoniana, tester strain, progeny test, combining ability, heritability

金国庆秦国峰刘伟宏储德裕洪苏州周志春. 马尾松测交系杂交子代生长性状遗传分析[J]. 林业科学, 2008, 44(1): 70-76.

Jin Guoqing;Qin Guofeng;Liu Weihong;Chu Deyu;Hong Suzhou;Zhou Zhichun. Genetic Analysis of Growth Traits on Tester Strain Progeny of Pinus massoniana[J]. Scientia Silvae Sinicae, 2008, 44(1): 70-76.

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马尾松测交系杂交子代生长性状遗传分析

Genetic Analysis of Growth Traits on Tester Strain Progeny of Pinus massoniana

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