《Table 3 Identical variants of SCN resistance soybean cultivar》

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《黑龙江省抗胞囊线虫大豆的分子遗传和相关基因挖掘（英文）》

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Kangxian 4 and Kangxian 6 were two soybean cultivars widely planted in western Heilongjiang.Kangxian 4which was more widely planted in eastern Heilongjiang，was developed by hybridization and pedigree selection using SCN resistant 8105-5 as the female parent，and Jiufeng 1 as the male parent，which was a genetically improved line derived from the cross between Kangxian 2 and Heinong 37.The base substitution coefficient between Kangxian 2 and Kangxian 4 was0.334，indicating close genetic relationship between them.The genetic information of Kangxian 2 was distributed unevenly on the chromosomes of Kangxian 4，as the percentage of identical allelic variants was more than 91%on chromosomes 4 and 10，more than 81%on chromosomes 1，7，8，11，12，13，14，15，18，19 and 20，more than 71%on chromosomes 2，3，5，9 and 16，and more than 68%on chromosomes 6 and17，indicating that more than 66.8%of the genetic information of Kangxian 2 was passed on to its offsprings，which possessed high resistance to stresses，but changed in stem termination type，plant height，growth period（Table 3 and Fig.3），which was also proved by the introgression of genetic material between Kangxian2 and Kangxian 4（Fig.2，Fig.3）.