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当前位置: 首页 > 文章 > 马铃薯2n花粉植株后代与优良四倍体株系的遗传分析 中国马铃薯 1990 (2) 78-82
Position: Home > Articles > GENETIC ANALYSIS AND POTENTIAL OF 24 TRUE POTATO SEED FAMILIES FROM TETRAPLOID-DIPLOID (TD) OFFSPRINGS CROSS WITH 4X PARENTLINES Chinese Potato Journal 1990 (2) 78-82

马铃薯2n花粉植株后代与优良四倍体株系的遗传分析

作  者：
屈冬玉;张希近;程天庆
摘  要：
本试验对5个TD后代和Serrana作母本与4个4x后代杂交得到的24个家系进行了评价,按设计Ⅱ方法对此群体的单株重、单株块茎数、商品率的配合力及遗传力进行了分析。HP.278.22×AVRDC单株重的特殊配合力最高为333.13,母本以Serrana,HP.278.22的一般配合力最高,分别为125.96,69.71,而父本以LT—7,AVRDC最高分别为62.88、10.88。单株重的遗传力为41.62％,而商品率、单株块茎数的遗传力均低,TD后代作亲本对特殊配合力影响较大表明2n花粉在传递杂合性方面的优势。6个最好家系中既有一般配合力作用大的,也有特殊配合力作用大的,或者两者兼而有之,并表明实生种子育种时,亲本的配合力测定是非常重要的。
译  名：
GENETIC ANALYSIS AND POTENTIAL OF 24 TRUE POTATO SEED FAMILIES FROM TETRAPLOID-DIPLOID (TD) OFFSPRINGS CROSS WITH 4X PARENTLINES
作  者：
Qu Dongyu, Zhang Xijin and Cheng Tiaugqing
摘  要：
24 PS families from live TD parents and one 4× cv. Serrana as females in cosses with four 4× clones were introduced from International Potato Center and evaluatedat China. Data about tuber yield/plant, no. tuber/plant, marketable tuber(>50g) were analy ized accroding to N. C.—Ⅱ model(combining ability, heritability). HP.278.22×AVRDC gavNe highest specific combining ability (S.C.A) of tuber yields 333. 13, Serrana and HP. 278.22 given higher G. C. A_f on tuber yield are 125.96 and 69.71, respectively. LT-7 and AYRDC held Mgher G.C.Am teached 62.88 and 10.88 respectively, h~2 of tuber yield is 41.62%, while hs of marketable tuber and no. tuber/plant are very low. That S.C.A variance of population combining ability variancc accounts for over 70% shows TD offspring's advantage in transferring heterozigosity. Among six best families the tuber yields are affected by G.C.A and/or S.C.A. That indicates importance of estimtaes of combining ability in TPS breeding. 1. Vegetable Research Institute, Chinese Academy of Agricultura Scienes, Beijing, 2. Highland Agriculture Institute of Zhang jiakou prefecture, Nebei province, China.

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