Scholarlink

<p>Cytoplasmic Male Sterility, a maternally inherited trait which suppresses the production of viable pollen, eliminates the need for detasseling of females in hybrid maize seed production. A set of 88 diverse elite CIMMYT Asia maize inbred lines converted to CMS-C using a temperate donor, were evaluated for stable p<i>er se</i> performance for grain yield, male sterility and <i>Turcicum</i> Leaf Blight resistance. Performances of CMS maize hybrids of varied genetic backgrounds across diverse environments -- seasons, years, agroecologies, countries, abiotic- and biotic stresses -- established a stable and robust diversification process which included the identification of potential maintainers and restorers that will benefit researchers, the seed industry and farmers. While multiple CMS hybrids showed a range of yield performances comparable to non-CMS checks, we report on a distinct 9.9% yield advantage of a CMS hybrid compared to its isogenic non-CMS counterpart through a head-to-head analysis. From implications in enhancing global genetic gains to addressing issues of labour availability and rising wages, the technology offers opportunities for intellectual property protection and region-wide taming of tropical Asian maize germplasm diversity by imposing a heterotic discipline.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Diverse and stable male sterile tropical Asian maize inbred lines provide strategic opportunities for hybrid development

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月5日

查看全文
  • Satish A. Takalkar,
  • S. Murali Mohan,
  • Patne Nagesh,
  • Thanda Dhliwayo,
  • P. Bhaskara Naidu,
  • S. C. Boregowda,
  • Rajashekar M. Kachapur,
  • Dinesh G. Kanwade,
  • P. Mahadevu,
  • Narendra Kumar Singh,
  • Sudhir Kumar Injeti,
  • Manjunatha B. Kariganur,
  • Santosh K. Pattanashetti,
  • B. G. Ravindra,
  • Bindiganavile Sampath Vivek

摘要

Cytoplasmic Male Sterility, a maternally inherited trait which suppresses the production of viable pollen, eliminates the need for detasseling of females in hybrid maize seed production. A set of 88 diverse elite CIMMYT Asia maize inbred lines converted to CMS-C using a temperate donor, were evaluated for stable per se performance for grain yield, male sterility and Turcicum Leaf Blight resistance. Performances of CMS maize hybrids of varied genetic backgrounds across diverse environments -- seasons, years, agroecologies, countries, abiotic- and biotic stresses -- established a stable and robust diversification process which included the identification of potential maintainers and restorers that will benefit researchers, the seed industry and farmers. While multiple CMS hybrids showed a range of yield performances comparable to non-CMS checks, we report on a distinct 9.9% yield advantage of a CMS hybrid compared to its isogenic non-CMS counterpart through a head-to-head analysis. From implications in enhancing global genetic gains to addressing issues of labour availability and rising wages, the technology offers opportunities for intellectual property protection and region-wide taming of tropical Asian maize germplasm diversity by imposing a heterotic discipline.