CAJ | 학술논문

揭示全国鱼腥草Houttuynia cordata主产区种质资源形态变异规律,为选育鱼腥草优良品种提供依据.对23个种源鱼腥草叶片、花、果实和地上茎等性状进行系统调查,分析各性状间及它们与地理位置之间的相互关系.结果表明,不同种源鱼腥草叶片形态、植株花果数、果序长度、果序直径、果柄长度、蒴果数、种子数、株植株高度和地径等性状均存在显著差异,其中以叶片形态和植株花果数变异最大,植株高度和种子数次之;形态特征间存在明显相关性,根据形态特征可将不同种源鱼腥草划分为2个类型;2个类型在主要挥发油成分、随机扩增多态性DNA(RAPD)分子标记及生理等性状间存在显著的相关性.鱼腥草种质资源在形态、化学和生理等方面存在的差异性及其相关性为鱼腥草种质的遗传改良提供了物质基础和巨大潜力.图1表4参6
게시전국어성초Houttuynia cordata주산구충질자원형태변이규률,위선육어성초우량품충제공의거.대23개충원어성초협편、화、과실화지상경등성상진행계통조사,분석각성상간급타문여지리위치지간적상호관계.결과표명,불동충원어성초협편형태、식주화과수、과서장도、과서직경、과병장도、삭과수、충자수、주식주고도화지경등성상균존재현저차이,기중이협편형태화식주화과수변이최대,식주고도화충자수차지;형태특정간존재명현상관성,근거형태특정가장불동충원어성초화분위2개류형;2개류형재주요휘발유성분、수궤확증다태성DNA(RAPD)분자표기급생리등성상간존재현저적상관성.어성초충질자원재형태、화학화생리등방면존재적차이성급기상관성위어성초충질적유전개량제공료물질기출화거대잠력.도1표4삼6
To reveal the morphological variation in the main producing areas in China, eight characteristics of the leaves, flowers, fruits, and stems of Houttuynia cordata, namely fruetesccnce length, diameter, and stalk length;flower or fruit number per plant;capsule number;seed number;plant height;and ground diameter;from 23 different provenances were investigated. Then the relationship between them or geographic origin was studied by analysis of correlation. The division of types based on cluster analysis. Re-suhs showed major differences(P<0. 01)for the eight characteristics within provenances with flower or fruit number per plant varying most(R_(SD)=82%)followed by plant height and seed number. Meanwhile, morp hological characteristics were correlated with each other significantly(P<0. 05 or P<0. 01). Furthermore, according to the main morphological characteristics of leaves and stems, the 23 provenances could be divid-ed into two types. Therefore. morphological characteristics of H. cordata have a certain genetic basis allow-ing for a feasible division by type. Nevertheless, when breeding for excellent euhivars of H. cordata more comprehensive factors should be considered. [Ch, 1 fig. 4 tab. 6 ref. ]