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Inbreeding depression by recessive deleterious genes affecting female fecundity of a haplo-diploid mite

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Title: Inbreeding depression by recessive deleterious genes affecting female fecundity of a haplo-diploid mite
Authors: Saito, Y.1 Browse this author →KAKEN DB
Sahara, K. Browse this author →KAKEN DB
Mori, K. Browse this author
Authors(alt): 斉藤, 裕1
Keywords: genetics
deleterious recessive
female-limited genes
Issue Date: 2000
Publisher: Blackwell Science Ltd
Journal Title: Journal of Evolutionary Biology
Volume: 13
Issue: 4
Start Page: 668
End Page: 678
Publisher DOI: 10.1046/j.1420-9101.2000.00198.x
Abstract: The effect of inbreeding on haplo-diploid organisms has been regarded as very low, because deleterious recessive genes on hemizygous (haploid) males were immediately purged generation by generation. However, we determined such recessive genes to decrease female fecundity in a population of Schizotetranychus miscanthi Saito which is known in the Acari as a subsocial species with haplo-diploidy. In mother-son inbreeding experiments, there was no depression in egg hatchability nor in the larval survival of progeny over 4 generations. There was, on the other hand, significant inbreeding depression in the fecundity with increasing f-value. Crosses between two lineages, one having deleterious effects on the fecundity and the other having no such effects, established during the inbreeding, revealed heterosis, and backcrosses showed that the depression was caused by deleterious recessive(s). These results strongly suggest the existence of some deleterious genes governing only the traits of adult females in wild populations of haplo-diploid organisms.
Rights: Copyright © 2000, Blackwell Publishing
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 齋藤 裕

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