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Position: Home > Articles > Ovule number as a rising star for regulating seed yield: Hope or hype Journal of Integrative Agriculture 2024,23 (11)

Ovule number as a rising star for regulating seed yield: Hope or hype

作  者:
Khan, Shahid Ullah;Ali, Ahmad;Saeed, Sumbul;Fan, Yonghai;Shehazd, Ali;Gul, Hameed;Fahad, Shah;Lu, Kun
单  位:
Southwest Univ, Coll Agron & Biotechnol, Integrat Sci Ctr Germplasm Creat Western China Cho, Chongqing 400715, Peoples R China;Lebanese Amer Univ, Dept Nat Sci, Byblos, Lebanon;Minist Educ, Engn Res Ctr South Upland Agr, Chongqing 400715, Peoples R China;Abdul Wali Khan Univ Mardan, Dept Agron, Khyber Pakhtunkhwa 23200, Pakistan;Southwest Univ, Coll Agron & Biotechnol, Chongqing 400715, Peoples R China;Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China;Griffith Univ, Sch Environm & Sci, Nathan, Qld 4111, Australia;Khyber Med Univ, Women Med & Dent Coll, Peshawar 22020, Kpk, Pakistan
关键词:
Brassica napus;ovule number;genetics;ovule development;hormonal signaling
摘  要:
Rapeseed (Brassica napus L.) is the second most widely grown premium oilseed crop globally, mainly for its vegetable oil and protein meal. One of the main goals of breeders is producing high-yield rapeseed cultivars with sustainable production to meet the requirements of the fast-growing population. Besides the pod number, seeds per silique (SS), and thousand-seed weight (TSW), the ovule number (ON) is a decisive yield determining factor of individual plants and the final seed yield. In recent years, tremendous efforts have been made to dissect the genetic and molecular basis of these complex traits, but relatively few genes or loci controlling these traits have been reported thus far. This review highlights the updated information on the hormonal and molecular basis of ON and development in model plants (Arabidopsis thaliana). It also presents what is known about the hormonal, molecular, and genetic mechanism of ovule development and number, and bridges our understanding between the model plant species (A. thaliana) and cultivated species (B. napus). This report will open new pathways for primary and applied research in plant biology and benefit rapeseed breeding programs. This synopsis will stimulate research interest to further understand ovule number determination, its role in yield improvement, and its possible utilization in breeding programs.

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