OAR@ICRISATStudies on inheritance of male-sterility in Cajanus cajan × C. acutifolius crossesK BSaxenaauthorMBharathiauthorR VKumarauthorR KSrivastavaauthorNMallikarjunaauthorAmong foodlegumes, the first evercommercial hybrid breeding technology was developed in pigeonpea (Cajanus cajan (L.) Millsp.). For a long-term sustainability of hybrids both genetic as well as cytoplasmic diversityof thehybrid parents is essential. At present A2 and A4 CMS systems are being used in hybrid pigeonpea breeding. In this paper a case of maternal inheritance of male-sterility conditioned by the cytoplasm of cultivated pigeonpea is reported. This study was made in crosses involving cultivated genotypes as female parents and a wild relative of pigeonpea, Cajanus acutifolius, as male parent. The segregation data in F1, BC1F1, and BC2F1 generations established maternal inheritance of male-sterility. This source of CMS, when stabilized through backcrossing and selection to a productive recurrent parent,will provide much needed additional cytoplasmic diversity for the future hybrid breeding programs.Pigeonpea2013Indian Society of Pulses Research and DevelopmentArticle

For work being deposited by its own author: In self-archiving this collection of files and associated bibliographic metadata, I grant OAR@ICRISAT the right to store them and to make them permanently available publicly for free on-line. I declare that this material is my own intellectual property and I understand that OAR@ICRISAT does not assume any responsibility if there is any breach of copyright in distributing these files or metadata. (All authors are urged to prominently assert their copyright on the title page of their work.)

For work being deposited by someone other than its author: I hereby declare that the collection of files and associated bibliographic metadata that I am archiving at OAR@ICRISAT) is in the public domain. If this is not the case, I accept full responsibility for any breach of copyright that distributing these files or metadata may entail.

Clicking on the deposit button indicates your agreement to these terms.