玉米杂交种核遗传组成对不育细胞质效应的影响   总被引：2，自引：0，他引：2  

卞云龙  邓德祥  蒋守华  阚贵珍 《扬州大学学报(农业与生命科学版)》2004,25(3):47-50

以3组同核异质不育系与3个共同恢复系,按NCⅡ遗传设计进行组配,在分析不育细胞质对主要产量因子的细胞质效应基础上,进一步研究玉米杂交种核遗传组成对产量性状不育细胞质效应的影响。结果表明：①C型、S型、YⅠ-1型3种不育细胞质对穗粗、百粒重2个性状的遗传负效应受不育系的核背景、父本核及核核互作的影响,且影响程度因不育细胞质类型、产量性状及杂交种亲本不同而异;②可通过对不育细胞质类型及杂交种亲本的选择以减轻或克服不育细胞质的遗传负效应。  相似文献   

兰考906对小麦K型不育系的育性恢复性能   总被引：1，自引：0，他引：1  

詹克慧  程西永  范平  董永彬  高翔  谭书贵  尚海超 《河南农业科学》2005,(2):15-18

以K型不育系豫麦 3号和S4 3为母本 ,对兰考 90 6的 2 0个品系的恢复力进行了研究 ,并对兰考 90 6组配的组合杂种优势进行了初步探讨。结果表明 :可以从兰考 90 6中筛选出对小麦K型不育系具有较强恢复力的品系 ;兰考 90 6各品系对不同K型不育系的恢复度不同 ,用兰考 90 6品系作为对K型不育系的恢复系 ,应该选用易恢性好的K型不育系 ;兰考 90 6的衍生系对K型不育系的恢复度较低 ,应选用对K型不育系的恢复度高的亲本对兰考 90 6品系进行改良 ;兰考 90 6与K型不育系组配的杂交组合既具有其优点 ,又能克服其本身的缺陷 ,是杂交小麦研究的优良亲本材料。  相似文献   

籼型杂交稻不育系细胞质基因对配合力的作用研究     

卢升安  陈芳远  易小平 《广西农业生物科学》1993,(1)

用5个同核异质不育系和5个恢复系组成5×5不完全双列杂交,估算了不育系细胞质基因对单株粒重、生育期等9个性状的配合力的作用。结果表明:杂交稻同核异质不育系的胞质基因对不育系多数性状的一般配合力效应和组合特殊配合力效应均具显著的作用。因而认为,配合力的遗传基础应包括细胞质基因的效应。  相似文献   

Development of new cytoplasmic genetic male sterile lines through Indica × Japonica hybridization in rice     

S. B. Pradhan  S. N. Ratho  P. J. Jachuck 《Euphytica》1990,51(2):127-130

Summary From 28 Indica-Japonica crosses, two Indica cultivars, V.20B and Sattari were identified to possess male sterile cytoplasm with fertility restoring genes. It was possible to develop a new Japonica cytoplasmic genetic male sterile line (Zhunghua-1) on Indica male sterile cytoplasm (V 20B) by repeated backcrossing the complete pollen sterile plants of V 20B x Zhunghua-1 to the recurring male parent, Zhunghua-1. The study indicated that it would be possible to develop male sterile lines rom indica-japonica crosses only when there is sufficient amount of reciprocal differences with respect to pollen sterility. Further, it was inferred that it would be easier to develop Japonica male sterile lines on Indica cytoplasm than developing Indica male sterile line with japonica cytoplasm.  相似文献   

Molecular and biological studies on male sterile cytoplasm in Cruciferae. II. The origin of Ogura male sterile cytoplasm inferred from the segregation pattern of male sterility in the F1 progeny of wild and cultivated radishes (Raphanus sativus L.)     

Hiroshi Yamagishi  Toru Terachi 《Euphytica》1994,80(3):201-206

Summary To determine the origin of Ogura male sterile cytoplasm in radish (Raphanus sativus L.), wild and cultivated radishes were crossed. Three types of progeny resulted from the F₁ hybrids between the wild radish from Kushikino with Ogura-type mtDNA and the cultivars (Uchiki-Gensuke or Comet). The segregation patterns of the male sterility were compared with those of Ogura cytoplasm. The male sterility induced in the F₁ hybrid was maintained by crossing with Uchiki-Gensuke, that maintains Ogura male sterility. In the two types of progeny, in which Comet (a restorer of Ogura cytoplasm) was used as one of the parents, both fertile and sterile plants segregated at the predicted ratio on the assumption that a single dominant fertility restoring gene exists in the restorer. From these results, we concluded that the Ogura cytoplasm is identical to that of the wild radish, and the former originated in a population of Japanese wild radish.  相似文献   

Influence of Male Sterile Cytoplasms on the Physico-Chemical Grain Quality Traits in Hybrid Rice (Oryza Sativa L.)     

K. Hariprasanna  F. U. Zaman  A. K. Singh 《Euphytica》2006,149(3):273-280

Summary Possible unfavourable influence of sterility inducing cytoplasm on physico-chemical grain quality traits in rice hybrids is one of the important concerns hindering the large-scale adoption of hybrid rice technology. Produce from 23 pairs of CMS line × restorer (AF₁) and maintainer line × restorer (BF₁) cross combinations carrying different cyto-sterile sources (WA, ARC, Mutagenized IR 62829B and Kalinga I) was compared for various grain and cooking quality traits. The milling recovery in rice hybrids was not influenced by the sterile cytoplasm. For kernel dimensions before and after cooking there were both favourable and unfavourable cytoplasmic effects, which varied in magnitude depending upon the sterile cytoplasm and parental combinations. Similar results were obtained for kernel elongation and gelatinization temperature. The most widely used WA cytoplasm had minimum instances of unfavourable influence. In general, the cytoplasmic influence was found to be highly cross-specific and depended on the nuclear background of CMS line and fertility restorer. Availability of alloplasmic CMS lines carrying different cyto-sterile sources in the same nuclear background would help in ascertaining the cytoplasmic influence in a more comprehensive manner.  相似文献   

Molecular and biological studies on male-sterile cytoplasm in the Cruciferae. IV. Ogura-type cytoplasm found in the wild radish, Raphanus raphanistrum   总被引：1，自引：0，他引：1  

H. Yamagishi  T. Terachi 《Plant Breeding》1997,116(4):323-329

The orf138 gene, which is specific to Ogura male-sterile cytoplasm, was analysed in mitochondrial DNA (mtDNA) of the wild radish, Raphanus raphanistrum, by polymerase chain reaction (PCR), Southern hybridization and sequencing. The effect of R. raphanistrum cytoplasm on the expression of male sterility was also examined in progeny with R. sativus. A PCR-aided assay and Southern hybridization revealed that three out of six strains analysed included plants with orf138. The sequence of wild type orf138 was same as that of Ogura, except for one or two nucleotide substitutions. Southern hybridization showed a novel mtDNA configuration in R. raphanistrum, in addition to the normal and Ogura types identical to those in R. sativus. Among interspecific hybrids, all the F₁ had normal pollen fertility. In the F₂ progeny between female wild plants having orf138 and the maintainer of Ogura male sterility, male-sterile plants were segregated, fitting the ratio of 3 fertile: 1 sterile plant. R. raphanistrum has cytoplasm that induces male sterility in radishes, and contains a dominant fertility restorer gene.  相似文献   

An interspecific cross between Allium roylei Stearn and Allium cepa L., and its backcross to A. cepa     

Q. P. van der Meer  J. N. de Vries 《Euphytica》1990,47(1):29-31

Summary Alloplasmic lines of B. napus with the cytoplasm of B. campestris, B. juncea, B. carinata and B. oleracea var. alboglabra were developed with the backcross substitution method. Cytoplasmic influence for different morphological and physiological attributes were absent. This suggests a common origin of the Brassica species concerned.  相似文献   

The influence of cytoplasmic differences on shoot morphogenesis inBrassica carinata A. Br.     

S. B. Narasimhulu  V. L. Chopra  Shyam Prakash 《Euphytica》1989,40(3):241-243

Summary The influence of cytoplasmic differences on shoot regeneration response has been investigated inB. carinata (BBCC) synthesised from reciprocal crosses betweenB. nigra (BB) andB. oleracea (CC). Mean shoot regeneration response from cotyledons of C cytoplasmic origin was twice as high as that from cotyledons with B cytoplasm. Statistical analysis of data indicated significant differences between cytoplasms, among growth regulator combinations and between cytoplasms and growth regulator interactions  相似文献   

Fertility restoration of hybrids between Solanum melongena L. and S. aethiopicum L. Gilo Group by chromosome doubling and cytoplasmic effect on pollen fertility     

Shiro Isshiki  Takashi Taura 《Euphytica》2003,134(2):195-201

Reproductive fertility traits were studied in the reciprocal hybrids of the eggplant(Solanum melongena L.) and S. aethiopicum L. Gilo Group, and in synthetic amphidiploids to discover whether fertility in these reciprocal hybrids was restored by chromosome doubling. Isozyme and RAPD analyses confirmed hybridity of the hybrids and amphidiploids. Analyses of chloroplast and mitochondrial DNAs confirmed that the cytoplasm of each of the hybrids and amphidiploids was from the maternal parent. Pollen sterility of S. melongena × S. aethiopicum Gilo Group [F₁ (Mel × Aet)] was restored by chromosome doubling, while the reciprocal hybrid S. aethiopicum Gilo Group ×S. melongena [F₁ (Aet × Mel)]and its amphidiploid did not produce any pollen grains; their microspores degenerated without being released from tetrads. Hence the cytoplasm of S. aethiopicum Gilo Group seems to beresponsible for their pollen-non-formation type sterility of the hybrid. Both the F₁ hybrids did not set any fruits by either selfing or backcrossing, while their amphidiploids set fruits after pollinating with pollen from the amphidiploid of F₁ (Mel × Aet). Seeds obtained from both the amphidiploids germinated normally. Chromosome doubling has been effective in restoring fertility of the hybrids. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献