Recombination in Interpopulation Hybrids of the Copepod Tigriopus californicus: Release of Beneficial Variation Despite Hybrid Breakdown | Zendy

Suzanne Edmands | Zendy

Open Access

Recombination in Interpopulation Hybrids of the Copepod Tigriopus californicus: Release of Beneficial Variation Despite Hybrid Breakdown

Author(s) -

Suzanne Edmands

Publication year - 2008

Publication title -

journal of heredity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 92

eISSN - 1471-8505

pISSN - 0022-1503

DOI - 10.1093/jhered/esn008

Subject(s) - biology , backcrossing , hybrid , copepod , meiosis , genetics , zoology , evolutionary biology , gene , botany , crustacean

Crosses between divergent populations of the copepod Tigriopus californicus typically result in fitness reductions for both F2 and backcross hybrids. Because females in this species lack chiasmatic meiosis, both recombinant and nonrecombinant backcross hybrids can be created. Recombinant hybrids were found to have significantly faster development time for both males and females in 2 pairs of crosses, indicating the creation of favorable gene combinations by disrupting parental linkage groups.

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