African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12481

Full Length Research Paper

Inheritance and identification of SCAR marker linked to bacterial wilt-resistance in eggplant

Cao Bi-hao*, Lei Jian-jun, Wang Yong and Chen Guo-ju
College of Horticulture, South China Agriculture University, Guangzhou 510642, Guangdong Province, PR China.
Email: [email protected]

  •  Accepted: 17 September 2009
  •  Published: 19 October 2009

Abstract

 

In the present work, the combinations (F1) were crossed between highly resistant and susceptible to bacterial wilt eggplant parents and its F2, BC1 segregation population plants were inoculated with race1 of Ralstonia solanacearum in greenhouse. In this paper, we reported that the inheritance of bacterial wilt resistance in eggplant was controlled by a single dominant gene showing Mendelian inheritance model. In addition, a 762 bp molecular marker linked to a bacterial wilt-resistant gene of eggplant was screened by the bulked segregant analysis (BSA) method and sequence characterized amplified region (SCAR) marker linked to bacterial wilt-resistance gene was also obtained. The genetic distance between this marker and the resistance gene is 3.33 cM

 

Key word: Eggplant, bacterial wilt-resistance, molecular marker, inheritance.