Microsatellites reveal the genetic structure of thelytokous strains of the migratory locust

• 来源期刊: 中国昆虫科学(英文版)
• 关键词: genetic structure Locusta migratoria microsatellites thelytokous parthenogenesis Wolbachia
• 年，卷（期）: 2007,（3）
• 页码范围: 193-199
• 页数: 7页
• 语种: 英文

摘要

This study reports on two parthenogenetic strains of the migratory locust Locusta migratoria. The offspring of thelytokou females had a single fragment per microsatellite loci. All offspring of the parthenogenetic F1 females were genetically identical. These results further confirmed that restitution of the sister products of early cleavage mitoses and cell fusion might be the most likely diploidization mechanisms in the thelytokous locusts. Polymerase chain reaction amplification results demonstrated that thelytoky in the locust was not induced by Wolbachia bacteria. Apart from the low fitness gained in thelytokous females, large populations with migration and losing heterozygosity may be other reasons why regular parthenogenesis has not evolved in the locust.