GENETIC EVIDENCE OF ELIMINATION OF CHROMOSOMES IN HESSIAN FLY
GENETIC EVIDENCE OF ELIMINATION OF CHROMOSOMES IN HESSIAN FLY
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DOI：
10.1093/aesa/62.5.1095
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发表时间：
1969-01-01
影响因子：
2.3
通讯作者：
HATCHETT, JH
中科院分区：
文献类型：
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作者：
GALLUN, RL;HATCHETT, JH
马耶蒂奥拉 (Mayetiola destructor) (Say)（双翅目：绦虫科）A 种和 B 种在阻碍‘Monon’小麦植株和在品种上存活的生理能力的特征差异被用来获得遗传证据，证明父系来源的染色体在精子发生过程中被消除。父母教养真；也就是说，种族 A 的交配产生的后代无法在莫农小麦植物上生存或阻碍其发育，而种族 B 的交配产生的后代可以，但种族之间相互交配的后代表明，种族 A 无法阻碍莫农小麦植物的能力比种族 B 的能力占主导地位；此外，F1杂种后代在黑麦植株上的生存能力介于种族A不能生存和种族B能够生存之间。第二代和回交后代的表型根据F1亲本的杂合性和杂交方向而不同。杂合雌性产生2种配子；纯合雌性、纯合雄性和杂合雄性仅产生一种。因此，不同交配的后代对小麦的发育迟缓以及幼虫的存活和幼虫大小的分布证明了父本染色体的消除。
The characteristic difference in the physiological capacity of Races A and B ofMayetiola destructor(Say) (Diptera: Cecidomyiidae) to stunt ‘Monon’ wheat plants and to survive on the cultivar was used to obtain genetic evidence that paternally derived chromosomes are eliminated during spermatogenesis. Parents bred true; that is, matings of Race A produced progenies that were unable to live on or stunt Monon wheat plants, and matings of Race B produced progenies that could, but progenies of reciprocal matings between the races showed that the inability of Race A to stunt Monon wheat plants was dominant to the ability of Race B; also, the ability of the F1hybrid progeny to survive on Monon wheat plants was intermediate between the inability of Race A and the ability of Race B. The phenotypes of the 2nd generation and the backcross progeny differed according to the heterozygosity and direction of cross of the F1parents. Heterozygous females produced 2 kinds of gametes; homozygous females, homozygous males, and heterozygous males produced only 1 kind. The elimination of the paternally derived chromosomes was therefore demonstrated by the stunting of the wheat by progenies of the different matings and by larval survival and distribution of larval size.