eprintid: 2166 rev_number: 7 eprint_status: archive userid: 30 dir: disk0/00/00/21/66 datestamp: 2011-10-10 08:13:09 lastmod: 2011-10-10 08:13:09 status_changed: 2011-10-10 08:13:09 type: article metadata_visibility: show contact_email: Library-ICRISAT@CGIAR.ORG item_issues_count: 0 creators_name: Mallikarjuna, N creators_name: Saxena, K B icrisatcreators_name: Mallikarjuna, N icrisatcreators_name: Saxena, K B affiliation: ICRISAT(Patancheru) country: India title: A new cytoplasmic nuclear male-sterility system derived from cultivated pigeonpea cytoplasm ispublished: pub subjects: s1.2 full_text_status: public keywords: pigeonpea, Cajanus acutifolius, cytoplasmic male-sterility, tetrads, restorers, maintainers note: The authors thank Mr. V. Balakrishna for the technicalassistance. abstract: Cytoplasmic male-sterility (CMS) in pigeonpea has been reported when some wild relatives of pigeonpea were crossed as the female parent with cultivated types as the male parent. In this paper we report a new source of CMS developed by using the cultivated pigeonpea as the female parent and one of its wild relative Cajanus acutifolius as the pollen donor. This is the first report in pigeonpea where CMS has been developed using the cytoplasm of cultivated pigeonpea. Several pure line cultivars of pigeonpea restored pollen fertility whereas cv. HPL 24 partially maintained male-sterility. The wild species C. acutifolius used as one of the parents, maintained complete sterility. Cytological analysis revealed that both in male-sterile as well as the fertile floral buds, meiosis proceeded normally till the tetrad stage. However in the male-sterile genotypes during the formation of tetrads, the pollen mother cell (PMC) wall did not dissolve to release the tetrads unlike in the fertile genotypes and this major event was found to be responsible for male-sterility. date: 2005 date_type: published publication: Euphytica volume: 142 number: 1-2 publisher: Springer pagerange: 143-148 refereed: TRUE issn: 0014-2336 official_url: http://dx.doi.org/10.1007/s10681-005-1199-x related_url_url: http://scholar.google.co.in/scholar?hl=en&q=allintitle%3A+%22A+new+cytoplasmic+nuclear+male-sterility+system+derived+from+cultivated+pigeonpea+cytoplasm%22&btnG=Search&as_sdt=0%2C5&as_ylo=&as_vis=0 related_url_type: author citation: Mallikarjuna, N and Saxena, K B (2005) A new cytoplasmic nuclear male-sterility system derived from cultivated pigeonpea cytoplasm. Euphytica, 142 (1-2). pp. 143-148. ISSN 0014-2336 document_url: http://oar.icrisat.org/2166/1/A_new_cytoplasmic_nuclear_male-sterility_system_derived_from_cultivated_pigeonpea_cytoplasm.pdf