Inheritance of glyphosate resistance in goosegrass (Eleusine indica)

Chin Hong Ng, R Wickneswari V Ratnam, Salmijah Surif, Ismail Sahid

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The inheritance of glyphosate-resistant goosegrass was studied by making reciprocal crosses between resistant (R) and susceptible (S) biotypes. Eighty-four F1 hybrids were confirmed using isozyme analyses. Reciprocal F1 hybrids displayed uniform levels of resistance intermediate (I) to that of the parental types, with no indication of maternal inheritance. The F1 hybrids were selfed to produce F2 populations. F3 populations were produced by selfing resistant and intermediate F2 phenotypes. A segregation ratio of 1:2:1 (S:I:R) was observed in the F2 and subsequently in the F3 generations derived from selfing intermediate F2 phenotypes. Individuals in F3 families derived from selfing resistant F2 phenotypes were resistant. Results from the present study show that glyphosate resistance in goosegrass is inherited as a single, nuclear, and incompletely dominant gene.

Original languageEnglish
Pages (from-to)564-570
Number of pages7
JournalWeed Science
Volume52
Issue number4
DOIs
Publication statusPublished - 2004

Fingerprint

Eleusine indica
selfing
glyphosate
inheritance (genetics)
phenotype
reciprocal crosses
dominant genes
biotypes
isozymes

Keywords

  • Herbicide resistance
  • Inheritance

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

Cite this

Inheritance of glyphosate resistance in goosegrass (Eleusine indica). / Ng, Chin Hong; V Ratnam, R Wickneswari; Surif, Salmijah; Sahid, Ismail.

In: Weed Science, Vol. 52, No. 4, 2004, p. 564-570.

Research output: Contribution to journalArticle

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