Interspecific hybrids and speciation in the genus Acheta (Orthoptera, Gryllidae)
Interspecific hybrids and speciation in the genus Acheta (Orthoptera, Gryllidae)
复制标题
DOI：
10.1139/z60-055
复制
发表时间：
1960-01-01
期刊：
影响因子：
--
通讯作者：
BIGELOW, R. S.
中科院分区：
文献类型：
--
作者：
BIGELOW, R. S.
Acheta rubens 在实验室中与“北泉种”（NSS）和 assimilis 产生了种间杂种，但不与与 rubens 和 pennsylvanicus 杂交但不与 NSS 杂交的 pennsylvanicus assimilis 杂交； NSS 仅与 rubens pennsylvanicus 杂交，仅与 assimilis 杂交。所有其他杂交这四个物种的尝试都失败了。在 2 1/2 个月内生产了超过 2500 个 assimilis X rubens 杂交品种；大约 18 个月内生产了不到 1000 个 rubens X NSS 杂交品种。在 rubens X assimilis 和 rubens X NSS 杂种中，携带 rubens X 染色体的雄性发育速度极其缓慢；携带 assimilis 或 NSS X 染色体的杂交雄性，以及所有杂交雌性，以正常速率或以亲本物种之间的中间速率发育。某些杂交雄性的歌曲在某些特征上介于亲本物种之间，但在其他特征上类似于亲本物种的歌曲。 rubens X NSS 杂交雌性产生了可育的回交雄性和雌性，但这些标本的后代的活力和生育力异常低；回交和F2若虫都是由rubens X assimilis杂交产生的。在相同温度下，雌性宾夕法尼亚鱼产下的杂交卵的孵化期不到正常宾夕法尼亚鱼卵的一半。 ||摘要作者：Auth。抽象
Acheta rubens produced interspecific hybrids with both the "northern spring species" (NSS) and assimilis in the laboratory, but not with pennsylvanicus assimilis crossed with both rubens and pennsylvanicus but not with NSS; NSS crossed only with rubens pennsylvanicus crossed only with assimilis. All other attempts to cross the four species failed. Over 2500 assimilis X rubens hybrids were produced within 2 1/2 months; less than 1000 rubens X NSS hybrids were produced over about 18 months. The developmental rate of males carrying rubens X chromosomes was extremely slow in both rubens X assimilis and rubens X NSS hybrids; hybrid males carrying either assimilis or NSS X chromosomes, and all hybrid females, developed at normal rates, or at rates intermediate between those of the parental species. The songs of certain hybrid males were intermediate between those of the parental species in certain features but resembled the song of one parental species in other features. Fertile backcross males and females were produced by rubens X NSS hybrid females but the viability and fertility of the offspring of these specimens were abnormally low; both backcross and F2 nymphs have been produced by rubens X assimilis hybrids. The incubation periods of hybrid eggs laid by pennsylvanicus females were less than half those of normal pennsylvanicus eggs at the same temperature. || ABSTRACT AUTHORS: Auth. abst