|Table of Contents|

EXSERTED STIGMA OF TWIN STYLUS AND IT’ S GENETIC BASIS OFHETEROGENEITY IN SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2005年04期
Page:
256-259，329
Research Field:
Publishing date:

Info

Title:
EXSERTED STIGMA OF TWIN STYLUS AND IT’ S GENETIC BASIS OFHETEROGENEITY IN SOYBEAN
Author(s):
Liang Huizhen　 Li Weidong
(Cotton &Oil Crops Research Institute , Henan Academy of Agricultural Sciences ,Zhengzhou 450002,China)
Keywords:
Male - sterile ; Mutant ; Soybean ; Exsered stigma; Twin style
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2005.04.0256
Abstract:
　 Here we report a soybean semi - sterile line (HNL002). HNL002 possesses five mutations,which are exsered stigma , twin stylus, anther degeneration , male - sterile and long distance between an-ther and stigma entirely. Through cytological observation , this semi - sterile line gets together shorter fil-ament ,and longer stigma, longer stylus and longer carpophore. The flowers present a opening pore on thetop of twin stylus, while stigma exserting. Anther is few , and anther dehiscence is difficult. Anther sur-rounding ovary is obviously lower than stigma , when blooming. Self - pollination is difficult , therefore themutation has some of stertile. Stertile is controled by nucleus recessive gene , the ratio of fertile to exseredstigma sterile would be 3 :1. High temperature could make filament twist , which increased the distance be-tween stigma and anther. Those maybe result in lower podding rate. The degree of stylus exsertion is alongwith carpophore length increasing. The genotype of exsered stigma represents long stigma, long stylus andlong chondrio evidently. That finding will directly provide breeding resource for application of "three - linehybrid"and "two - line hybrid"in soybean , which will make hybrid soybean come in market cosmically.

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Last Update: 2017-01-08