农业科学与技术（英文版）
農業科學與技術（英文版）
농업과학여기술（영문판）
AGRICULTURAL SCIENCE & TECHNOLOGY
2011年
1期
8-10
,共3页
草莓%核型分析%二倍体
草莓%覈型分析%二倍體
초매%핵형분석%이배체
Strawberry%Karyotype analysis%Diploid
[目的]分析二倍体野生种草莓的核型,为探讨草莓的起源、进化及遗传育种研究提供依据.[方法]对草莓属(Fragaria)植物4个二倍体种森林草莓(F.vesca L.)、纤细草莓(F.gracilis A.Los.)、黄毛草莓(F.nilgerreasis Schidl)和五叶草莓(F.pentaphylla A.Los.)进行了核型分析.[结果]纤细草莓的核型为2n=2x=14=10m+2sm+2m*,属1B类型;黄毛草莓为2n=2x=14=14m,属1A类型;五叶草莓为2n=2x=14=12m+2sm,属1A类型;森林草莓为2n=2x=14=14m,属1A类型.[结论]草莓二倍体及品种核型对称性为:黄毛草莓>森林草莓>五叶草莓>纤细草莓,供试草莓种的新缘进化顺序可能为黄毛草莓、森林草莓、五叶草莓、纤细草莓.
[目的]分析二倍體野生種草莓的覈型,為探討草莓的起源、進化及遺傳育種研究提供依據.[方法]對草莓屬(Fragaria)植物4箇二倍體種森林草莓(F.vesca L.)、纖細草莓(F.gracilis A.Los.)、黃毛草莓(F.nilgerreasis Schidl)和五葉草莓(F.pentaphylla A.Los.)進行瞭覈型分析.[結果]纖細草莓的覈型為2n=2x=14=10m+2sm+2m*,屬1B類型;黃毛草莓為2n=2x=14=14m,屬1A類型;五葉草莓為2n=2x=14=12m+2sm,屬1A類型;森林草莓為2n=2x=14=14m,屬1A類型.[結論]草莓二倍體及品種覈型對稱性為:黃毛草莓>森林草莓>五葉草莓>纖細草莓,供試草莓種的新緣進化順序可能為黃毛草莓、森林草莓、五葉草莓、纖細草莓.
[목적]분석이배체야생충초매적핵형,위탐토초매적기원、진화급유전육충연구제공의거.[방법]대초매속(Fragaria)식물4개이배체충삼림초매(F.vesca L.)、섬세초매(F.gracilis A.Los.)、황모초매(F.nilgerreasis Schidl)화오협초매(F.pentaphylla A.Los.)진행료핵형분석.[결과]섬세초매적핵형위2n=2x=14=10m+2sm+2m*,속1B류형;황모초매위2n=2x=14=14m,속1A류형;오협초매위2n=2x=14=12m+2sm,속1A류형;삼림초매위2n=2x=14=14m,속1A류형.[결론]초매이배체급품충핵형대칭성위:황모초매>삼림초매>오협초매>섬세초매,공시초매충적신연진화순서가능위황모초매、삼림초매、오협초매、섬세초매.
[Objective] This study was to analyze the karyotypes of wild diploid strawberry species, so as to provide basis for revealing the ori- gins, evolvement and genetic breeding of strawberry. [Method] Four diploid strawberry species including Fragaria gracilis A. Los, Fragaria nilgerrensis Schidl, Fragaria pentaphylla A. Los. and Fragaria vesca L. were used as experimental materials to analyze their chromosomal kary- otypes. [Result] The karyotype formula for strawberry species tested was as follows: 2n=2x=14=10m +2sm +2m * for F. gracilis A. Los, belonging to type 1B; 2n=2x=14=14m for F. nilgerrensis Schidl, belonging to type 1A; 2n=2x=14=12m+2sm for F. pentaphylla A. Loz., belonging to type 1A; 2n=2x=14=14m for F. vesca L., belonging to type 1A. Karyotype analysis showed that karyotypic asymmetry degree of the four species was F. gracilis A. Los. > F. pentaphylla A. Loz. > F. vesca L.>F. nilgerrensis Schidl. [Conclusion] The evolution order of these four species was probably F. gracilis A. Los., F. pentaphylla A. Loz., F. vesca L., F. nilgerrensis Schidl.
