CAJ | 학술논문

以美国厚皮甜瓜品系WI998为母本，中国薄皮甜瓜品系3-2-2为父本杂交所得的包括185个家系的重组自交系群体（RILs）为试验材料，通过RIL主基因＋多基因混合遗传模型分析法，在不同季节研究第一雌花节位（NFF）的遗传特点。结果表明：春季性状遗传受2对重叠性主基因＋加性-上位性多基因混合遗传模型（E＿1＿8）控制，主基因遗传率为79．17％，多基因遗传率分别为20．83％；秋季受2对互补性主基因＋加性-上位性多基因混合遗传模型（E＿1＿7）控制，主基因遗传率为61．94％，多基因遗传率分36．77％。甜瓜第一雌花节位受2对主基因控制，还受环境变异的影响。
이미국후피첨과품계WI998위모본，중국박피첨과품계3-2-2위부본잡교소득적포괄185개가계적중조자교계군체（RILs）위시험재료，통과RIL주기인＋다기인혼합유전모형분석법，재불동계절연구제일자화절위（NFF）적유전특점。결과표명：춘계성상유전수2대중첩성주기인＋가성-상위성다기인혼합유전모형（E＿1＿8）공제，주기인유전솔위79．17％，다기인유전솔분별위20．83％；추계수2대호보성주기인＋가성-상위성다기인혼합유전모형（E＿1＿7）공제，주기인유전솔위61．94％，다기인유전솔분36．77％。첨과제일자화절위수2대주기인공제，환수배경변이적영향。
Genetic analysis of melon node of the first female flower ( NFF) were conducted ,with a set of 185 re-combinant inbred lines(RILs) derived from a cross thick-skinned from USA WI998 and thin-skinned from China 3-2-2 by RIL mixed major gene plus polygene inheritance models .The result showed that the inheritance of NFF fit-ted two pairs of duplicate effect major genes plus additive-epitasis polygene model ( E_1_8 ) in spring.The major gene heritability of RILs were estimated to be 79.17%,the polygene heritability to be 20.83%.In autumn,the inher-itance of NFF fitted two pairs of complementary effect major genes plus additive -epitasis polygene model (E_1_7).The major gene heritability of RILs were estimated to be 61.94%,the polygene heritability to be 36.77%.NFF in melon were controlled by two pairs of duplicate or complementary major genes plus additive -epitasis polygene ,and also af-fected by environment .