[1]叶金山,孟伟,谢青,等.毛泡桐与白花泡桐正反交F1无性系自然接干性状遗传变异的比较研究[J].西北林学院学报,2009,24(01):66-70.
 YE Jinshan,MENG Wei,XIE Qing,et al.Comparative Study of Natural Stemjoin Character Genetic Variation of P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P.fortunei (Seem.) Hemsl.×P.tomentosa (Thunb.) Steud. Reciprocal Cross F1 Clones[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2009,24(01):66-70.
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毛泡桐与白花泡桐正反交F1无性系自然接干性状遗传变异的比较研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第24卷
期数:
2009年01期
页码:
66-70
栏目:
出版日期:
2009-01-20

文章信息/Info

Title:
Comparative Study of Natural Stemjoin Character Genetic Variation of P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P.fortunei (Seem.) Hemsl.×P.tomentosa (Thunb.) Steud. Reciprocal Cross F1 Clones
作者:
叶金山 孟伟 谢青 胡伟华 杨文萍
( 国家林业局 泡桐研究开发中心,河南 郑州, 450003 )
Author(s):
YE Jinshan MENG Wei XIE Qing HU Weihua YANG Wenping
( Paulownia Research and Development Center of State Forestry Administration, Zhengzhou , Henan 450003 , China )
关键词:
毛泡桐×白花泡桐白花泡桐×毛泡桐自然接干性状遗传变异比较研究
Keywords:
P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl.P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud.natural stemjoin charactergenetic variationcomparative study
分类号:
S792.430.4
文献标志码:
A
摘要:
本文从树木遗传学的角度进行了毛泡桐×白花泡桐和白花泡桐×毛泡桐正反交F1无性系自然接干性状遗传变异的比较研究。结果表明(1)毛泡桐×白花泡桐和白花泡桐×毛泡桐正反交F1无性系自然接干性状的遗传变异在变异系数、变异模式、自然接干类型、自然接干优劣性、变异差异性、主成分结构、主成分贡献率、生长杂种优势、速生性、广义遗传力和遗传增益上都完全相同或基本相似而无本质差别。(2)接干高性状在影响和决定毛泡桐×白花泡桐和白花泡桐×毛泡桐正反交F1无性系自然接干性状的总体表现和最终状况上起着重要作用,而通直度性状是泡桐自然接干性状遗传改良的关键性状。(3)毛泡桐×白花泡桐和白花泡桐×毛泡桐正反交具有同等重要的杂交育种意义。(4)在泡桐的杂交育种、无性系育种、自然接干性状的遗传改良和多世代遗传改良中必须同等对待毛泡桐×白花泡桐和白花泡桐×毛泡桐而纠正过去长期只重视毛泡桐×白花泡桐而忽视白花泡桐×毛泡桐的杂交育种倾向。西北林学院学报24卷
Abstract:
A comparative study was cartied out from tree geneticson natural stemjoin character genetic variation of P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud. reciprocal cross F1 clones. The results were as follows (1) The genetic variation of natural stemjoin characters of P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud. reciprocal cross F1 clones was completey identical or broadly similar and had no essential distinction in coefficient of variation, variation model, natural stemjoin type, superiority and inferiority of natural stemjoin effects, variation difference characteristics, the structure of principal component, the contribution ratio of principal component, growth heterosis fastgrowing properties, heritability in the broad sense (hB2) and genetic gain (△G).(2) Height of stemjoin played an important role in affecting and determining total display and ultimate condition of natural stemjoin characters. Straightness of stem was a key character in genetic improvement of Paulownia natural stemjoin characters.(3) P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud. reciprocal cross had identically significant cross breeding meaning in Paulownia cross breeding.(4) P. tomentosa (Thunb.) Steud.×P. fortunei (Seem.) Hemsl. and P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud. reciprocal cross must be treated with equal importance in Paulownia cross breeding, Paulownia clone breeding, genetic improvement of Paulownia natural stemjoin character and multiple generation genetic improvement of paulownia. Furthermore, the paper reminded Paulownia hybridologist to correct the cross breeding tendencies of neglecting P. fortunei (Seem.) Hemsl.×P. tomentosa (Thunb.) Steud. for a long time.

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备注/Memo

备注/Memo:
收稿日期:20080411修回日期:20080430基金项目: 河南省自然科学基金项目(0611032600) 作者简介:叶金山,男,博士,副研究员,主要从事泡桐遗传育种研究。
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