Bai Yang nian Chen Jian Yu Dey ue Gai Junyi.STUDY ON POLLINATION-RELATED TRAITS IN SOYBEANMALE-STERILE LINES AND SOYBEAN GERMPLASM[J].Soybean Science,2002,21(01):18-24.[doi:10.11861/j.issn.1000-9841.2002.01.0018]
大豆雄性不育系和大豆资源有关开花授粉性状的研究
- Title:
- STUDY ON POLLINATION-RELATED TRAITS IN SOYBEANMALE-STERILE LINES AND SOYBEAN GERMPLASM
- 文章编号:
- 1000 -9841(2002)01 -0018 -07
- Keywords:
- Soybean ; Male -sterile line ; Germplasm ; Pollination -related t raits
- 分类号:
- S 565.102.4
- 文献标志码:
- A
- 摘要:
- 对大豆质核互作和核雄性不育材料有关开花授粉性状的研究表明, 花粉传媒花蓟马密度在可育株与不育株之间无显著差异, 同一材料内不育株的龙骨瓣开张度比可育株大;NJCMS2A 与NJCMS1A 间、N69 -2772(ms2)与N69 -2771(ms1)、N69 -2773(ms3)间的龙骨瓣开张度无明显差异。NJCMS2A 的异交率比NJCMS1A 高, 恰好NJCMS2B 的散粉性比NJCMS1B 好。类似地,N69 -2772 不育株的异交率高于其他两个核雄性不育材料, 恰好N69 -2772 可育株的散粉性也比其他两个核雄性不育材料的可育株好。NJCMS1A 的柱头活力可以保持2.5 天, 花瓣对柱头的活力有保护作用。NJCMS1A 的BC5:7家系间以及单株间雌性育性存在显著差异, 且筛选到雌性育性较好的家系。对大豆资源有关开花授粉性状的研究表明, 大豆资源中花瓣大小、龙骨瓣开张度、散粉性、单花花粉量、花蓟马密度等性状存在很大变异。野生大豆的花远小于栽培豆, 野生豆的花蓟马密度、龙骨瓣开张度等性状与栽培豆无显著差异, 野生豆的散粉性比栽培豆好;从310 份种质资源中筛选到30 份散粉性较好的材料、16 份龙骨瓣开张度较大的材料以及4 份两者均较好的材料。
- Abstract:
- The investig ation for pollination -related trait s in soy bean cy toplasm -nuclear male -sterile lines andnuclear male-sterile lines showed that no significant difference in density of flower -thrips w as detected betweenmale -fertile and male sterile plants .The opening deg ree of keel petals(ODKP)of male -sterile plants w as biggerthan that of male -fertile plants in a same material .No obvious difference of ODKP w as detected betweenNJCMS1A and NJCMS2A and between N69 -2772(ms2)and N69 -2771 (ms1).N69 -2773(ms3).Outcrossingrate of NJCMS2A w as bigger than of NJCMS1A , w hile the pollen dispersiveness of NJCMS2B happenedto be bet ter than that of NJCMS1B .Similarly , outcrossing rate of malesterile plants of N69 -2772 wasbig ger than that of other tw o nuclear male -sterile lines , w hile the pollen dispersiveness of male -fertile plant sof N69 -2772 also happened to be bet ter than that of other two nuclear male -sterile lines .The stigma viabilityof NJCMS1A could maintain 2 .5 days , and petals could have function to pro tect the stigma viability .Sig nificantdifferences of female fertili ty was detected among BC5.7 families of NJCMS1A and among plants of NJCMS1A ,and the BC5 .7 families w ith bet ter female fertility were screened out .The result s on soybean germplasm show edthat obvious varation w as detected for the t raits of petal size , ODKP , pollen dispersiveness, number of pollensper flow er , density of flow er -thrips .The flowers of G .soja were much smaler than that of G .max , and thepollen dispersiveness of G .soja w as bet ter than that of G .max .No significant dif ference in ODKP and densityof f lower -thrips w as detected betw een G .max and G .soja .And 30 materials w ith better pollen dispersiveness, 16 materals w ith larger ODKP and 4 materials w ith both w ere screened out .
参考文献/References:
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备注/Memo
作者简介:白羊年,(1967 -), 男, 博士, 从事大豆遗传育种研究工作。