Hybridization between Bursaphelenchus xylophilus and B.mucronatus
Hybridization between Bursaphelenchus xylophilus and B.mucronatus
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发表时间：
1994
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影响因子：
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通讯作者：
C. Beijing
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作者：
C. Beijing
用中国、日本、加拿大的5个松材线虫（B.xylophilus）品系与中国、日本、法国的5个拟松材线虫（B.mucronatus）品系进行杂交试验，结果表明，中国的两种拟松材线虫有可能杂交成功，但杂交后代数量有限，不易育。所以这两个物种在基因上是不同的，中国种与日本、法国、加拿大种杂交，有一个问题，种间杂交差异明显，种内杂交也有一定差异。种间杂交F1代雌虫的短尖尾与正反交中的短尖尾B相似。F1代杂种雌虫与其亲本雄虫回交更难产生后代。杂种成虫的畸形率在100%~ 100%之间，而种内杂交F1代雌虫的畸形率在100%~ 100%之间。杂种成虫的畸形率在100%~ 100%之间，而种间杂交F1代雌虫的畸形率在100%~ 100%之间，种内杂交F1代雌虫的畸形率在100%~ 100%之间。主要畸形为雄虫无骨针，雌虫和幼虫体弯曲。
The genetic analysis was conducted by crossing experiments to use 5 strainsof B.xylophilus from China,Japan,Canada and 5 strains of B.mucronatus from China,Japan,France.The results indicated that the two species of China might cross successfully,but thenumber of hybrids were limited and hardly fertile,so the two species were different in genet-ics.There was no difference in the strains of conspecies from China.When the two Chinesespecies were crossed with the strains of Japan,France,and Canada respectively,there was ob-vious difference in interspecific crossing and some difference in intraspecific crossing.The Flgeneration females of interspecific hybridization had mucronate tails similar to B.mucronatusin reciprocal crossing.Back crossing of F1 hybrid females to their parent males were moredifficult to produce progeny.The rate of deformations in hybrid adults ranged 10%～60%.Major deformations were no spicules in males and crooking of bodies in females and larvae.