Reproductive isolation on interspecific backcross of F1 pollen to parental species, Hemerocallis fulva and H. citrina (Hemerocallidaceae)

Akiko A. Yasumoto, Tetsukazu Yahara

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Reproductive failure of backcross could play important roles in determining the evolutionary outcome of hybridization. However, such studies have been somewhat fewer than those of the F1-producing cross and F1 × F1 cross. We conducted hand-pollination backcross experiments using Hemerocallis fulva, H. citrina, and their F1 hybrids. Seed set per flower of the backcrosses reduced to about 50% of the control cross, irrespective of ovule parent species. This symmetrical seed set reduction on the backcross might be caused by the death of backcross embryo as a result of Dobzhansky-Muller incompatibility by recessive alleles.

Original languageEnglish
Pages (from-to)287-291
Number of pages5
JournalJournal of Plant Research
Volume121
Issue number3
DOIs
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Plant Science

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