{"id":9493,"date":"2011-02-15T02:19:06","date_gmt":"2011-02-14T19:19:06","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2011\/02\/nghien-cuu-moi-quan-he-di-truyen-cua-keo-la-tram-acacia-auriculiformis-o-dong-nam-bo-bang-chi-thi-rapd-va-ssr\/"},"modified":"2013-10-06T09:02:08","modified_gmt":"2013-10-06T02:02:08","slug":"nghien-cuu-moi-quan-he-di-truyen-cua-keo-la-tram-acacia-auriculiformis-o-dong-nam-bo-bang-chi-thi-rapd-va-ssr","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-moi-quan-he-di-truyen-cua-keo-la-tram-acacia-auriculiformis-o-dong-nam-bo-bang-chi-thi-rapd-va-ssr\/","title":{"rendered":"Nghi\u00ean c\u1ee9u m\u1ed1i quan h\u1ec7 di truy\u1ec1n c\u1ee7a Keo l\u00e1 tr\u00e0m (Acacia auriculiformis) \u1edf \u0110\u00f4ng Nam B\u1ed9 b\u1eb1ng ch\u1ec9 th\u1ecb RAPD v\u00e0 SSR"},"content":{"rendered":"

V\u01b0\u01a1ng \u0110\u00ecnh Tu\u1ea5n<\/strong> <\/p>\n

Ph\u00e2n vi\u1ec7n Nghi\u00ean c\u1ee9u Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/em><\/strong> <\/p>\n

T\u00d3M T\u1eaeT<\/strong> <\/p>\n

Nghi\u00ean c\u1ee9u \u0111a d\u1ea1ng di truy\u1ec1n gi\u1eefa 100 c\u00e1 th\u1ec3 v\u00f4 t\u00ednh Keo l\u00e1 tr\u00e0m tr\u1ed3ng \u1edf \u0110\u00f4ng Nam b\u1ed9 \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh b\u1eb1ng 33 c\u1eb7p m\u1ed3i SSR v\u00e0 12 m\u1ed3i RAPD. K\u1ebft qu\u1ea3 cho th\u1ea5y bi\u1ebfn \u0111\u1ed9ng di truy\u1ec1n gi\u1eefa c\u00e1c c\u00e1 th\u1ec3 l\u00e0 th\u1ea5p. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch b\u1eb1ng c\u00e1c m\u1ed3i RAPD v\u00e0 SSR b\u1eb1ng ph\u1ea7n m\u1ec1m POPGENE cho th\u1ea5y c\u00e1c c\u00e1 th\u1ec3 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh 2 nh\u00f3m. Nh\u00f3m 1 g\u1ed3m c\u00e1 th\u1ec3 s\u1ed1 70 v\u00e0 71 (QLD). Nh\u00f3m 2 g\u1ed3m 98 c\u00e1 th\u1ec3 c\u00f2n l\u1ea1i. Trong nh\u00f3m 2 l\u1ea1i \u0111\u01b0\u1ee3c chia th\u00e0nh 2 nh\u00f3m ph\u1ee5. C\u00e1c c\u00e1 th\u1ec3 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb Queensland n\u1eb1m trong nh\u00f3m 1 v\u00e0 nh\u00f3m ph\u1ee5 2b, trong khi c\u00e1c c\u00e1 th\u1ec3 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb Th\u00e1i Lan n\u1eb1m trong nh\u00f3m ph\u1ee5 2a. C\u00e1c c\u00e1 th\u1ec3 43, 44, 57 v\u00e0 58 c\u00f3 ch\u1ec9 s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed3ng th\u1ea5p l\u1ea1i \u0111\u01b0\u1ee3c ghi nh\u1eadn t\u0103ng tr\u01b0\u1edfng t\u1ed1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m v\u1eadt li\u1ec7u lai t\u1ea1o. <\/p>\n

T\u1eeb kh\u00f3a<\/strong>: Ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed RAPD, SSR, \u0111a d\u1ea1ng di truy\u1ec1n, Keo l\u00e1 tr\u00e0m (Acacia auriculiformis<\/em>) <\/p>\n

I. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n

Keo l\u00e1 tr\u00e0m (Acacia auriculiformis <\/em>Cunn. Ex. Benth) c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0Tr\u00e0m b\u00f4ng v\u00e0ng, l\u00e0 lo\u00e0i c\u00e2y m\u1ecdc nhanh c\u00f3 xu\u1ea5t x\u1ee9 t\u1eeb Australia, Papua, New Guinea v\u00e0 Indonesia. Keo l\u00e1 tr\u00e0m \u0111\u01b0\u1ee3c du nh\u1eadp v\u00e0o Vi\u1ec7t Nam t\u1eeb nh\u1eefng n\u0103m 60 c\u1ee7a th\u1ebf k\u1ec9 XX, v\u1edbi m\u1ee5c \u0111\u00edch ch\u1ee7 y\u1ebfu l\u00e0 cung c\u1ea5p ngu\u1ed3n nguy\u00ean li\u1ec7u cho s\u1ea3n xu\u1ea5t gi\u1ea5y, l\u00e0m \u0111\u1ed3 trang tr\u00ed n\u1ed9i th\u1ea5t, l\u00e0m than c\u1ee7i,…. Hi\u1ec7n nay, Keo l\u00e1 tr\u00e0m \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u00ean h\u1ea7u h\u1ebft c\u00e1c t\u1ec9nh \u1edf n\u01b0\u1edbc ta, nh\u01b0ng ph\u1ed5 bi\u1ebfn l\u00e0 \u1edf c\u00e1c t\u1ec9nh mi\u1ec1n Trung v\u00e0 v\u00f9ng \u0110\u00f4ng Nam B\u1ed9. Keo l\u00e1 tr\u00e0m \u0111\u00f3ng g\u00f3p m\u1ed9t c\u00e1ch c\u00f3 \u00fd ngh\u0129a trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t gi\u1ea5y, ngh\u1ec1 s\u1ea3n xu\u1ea5t h\u00e0ng th\u1ee7 c\u00f4ng m\u1ef9 ngh\u1ec7 v\u00e0 g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n thu nh\u1eadp c\u1ee7a n\u00f4ng d\u00e2n tr\u1ed3ng r\u1eebng \u1edf n\u01b0\u1edbc ta. V\u00ec v\u1eady vi\u1ec7c ch\u1ecdn gi\u1ed1ng Keo l\u00e1 tr\u00e0m c\u00f3 n\u0103ng su\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng cao, ch\u1ed1ng ch\u1ecbu s\u00e2u b\u1ec7nh l\u00e0 m\u1ed9t \u0111\u00f2i h\u1ecfi h\u1ebft s\u1ee9c c\u1ea5p thi\u1ebft \u0111\u1eb7t ra cho ng\u00e0nh L\u00e2m nghi\u1ec7p. <\/p>\n

Hi\u1ec7n nay nghi\u00ean c\u1ee9u ch\u1ecdn gi\u1ed1ng Keo l\u00e1 tr\u00e0m \u1edf Vi\u1ec7t Nam ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh theo k\u1ef9 thu\u1eadt ch\u1ecdn t\u1ea1o truy\u1ec1n th\u1ed1ng. V\u1eadt li\u1ec7u ch\u1ecdn l\u00e0m b\u1ed1 m\u1eb9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u1ef1a tr\u00ean nh\u1eefng \u0111\u00e1nh gi\u00e1 v\u1ec1 ki\u1ec3u h\u00ecnh hay v\u1ec1 m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc. Ch\u1ecdn l\u1ecdc c\u1eb7p lai theo c\u00e1ch n\u00e0y c\u00f3 nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 ch\u01b0a ph\u1ea3n \u00e1nh \u0111\u00fang b\u1ea3n ch\u1ea5t di truy\u1ec1n c\u1ee7a c\u00e1 th\u1ec3. V\u00ec th\u1ebf, kh\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea1t m\u1ee5c ti\u00eau t\u1ea1o gi\u1ed1ng. K\u1ef9 thu\u1eadt \u0111\u00e1nh gi\u00e1 m\u1ed1i quan h\u1ec7 di truy\u1ec1n c\u1ee7a c\u00e2y tr\u1ed3ng n\u00f3i chung v\u00e0 m\u1ed9t s\u1ed1 lo\u00e0i keo n\u00f3i ri\u00eang b\u1eb1ng c\u00e1c ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u t\u1eeb v\u00e0i th\u1eadp ni\u00ean tr\u1edf l\u1ea1i \u0111\u00e2y v\u00e0 \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng m\u1ed9t s\u1ed1 ch\u1ec9 th\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch h\u1eefu hi\u1ec7u trong x\u00e1c \u0111\u1ecbnh quan h\u1ec7 di truy\u1ec1n c\u1ee7a c\u00e1c c\u00e1 th\u1ec3 nghi\u00ean c\u1ee9u. <\/p>\n

Nanda v\u00e0 c\u1ed9ng s\u1ef1 (2004) \u0111\u00e3 d\u00f9ng 40 m\u1ed3i RAPD \u0111\u1ec3 nghi\u00ean c\u1ee9u m\u1ed1i quan h\u1ec7 di truy\u1ec1n c\u1ee7a 6 lo\u00e0i keo v\u00e0 ghi nh\u1eadn c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng cao (70%) v\u1ec1 m\u1eb7t di truy\u1ec1n gi\u1eefa c\u00e1c lo\u00e0i. S\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng gi\u1eefa A. auriculiformis<\/em> v\u00e0 A. concinna<\/em> l\u00e0 28%. C\u00e1c t\u00e1c gi\u1ea3 c\u0169ng ghi nh\u1eadn c\u00f3 m\u1ed1i quan h\u1ec7 r\u1ea5t g\u1ea7n g\u0169i v\u1ec1 m\u1eb7t di truy\u1ec1n gi\u1eefa c\u00e1c c\u00e1 th\u1ec3 trong c\u00f9ng qu\u1ea7n th\u1ec3. <\/p>\n

Widyatomoko v\u00e0 Shiraishi (2001) \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c 8 ch\u1ec9 th\u1ecb trong s\u1ed1 24 ch\u1ec9 th\u1ecb RAPD s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t Acacia auriculiformis v\u00e0 A. Mangium<\/em>. Josiah v\u00e0 c\u1ed9ng s\u1ef1 (2008)\u0111\u00e3 nghi\u00ean c\u1ee9u bi\u1ebfn \u0111\u1ed9ng di truy\u1ec1n c\u1ee7a qu\u1ea7n th\u1ec3 Acacia senegal<\/em> b\u1eb1ng 10 m\u1ed3i RAPD v\u00e0 5 m\u1ed3i ISSR. C\u00e1c t\u00e1c gi\u1ea3 \u0111\u00e3 ghi nh\u1eadn 55 ph\u00e2n \u0111o\u1ea1n \u0111a h\u00ecnh. S\u1ed1 ph\u00e2n \u0111o\u1ea1n trung b\u00ecnh l\u00e0 3,6 tr\u00ean c\u1eb7p RAPD+ISSR v\u00e0 ghi nh\u1eadn kho\u1ea3ng 86% bi\u1ebfn \u0111\u1ed9ng di truy\u1ec1n hi\u1ec7n di\u1ec7n b\u00ean trong qu\u1ea7n th\u1ec3 v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ecba l\u00fd c\u0169ng g\u00f3p ph\u1ea7n v\u00e0o nh\u1eefng bi\u1ebfn \u0111\u1ed9ng n\u00e0y. <\/p>\n

M\u1ee5c ti\u00eau c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y l\u00e0 nh\u1eb1m t\u00ecm hi\u1ec3u m\u1ed1i quan h\u1ec7 di truy\u1ec1n c\u1ee7a c\u00e1c c\u00e1 th\u1ec3 Keo l\u00e1 tr\u00e0m (Acacia auriculiformis<\/em>) tr\u1ed3ng \u1edf v\u00f9ng \u0110\u00f4ng Nam B\u1ed9. <\/p>\n

(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p v\u1edbi ph\u00e1t tri\u1ec3n r\u1eebng b\u1ec1n v\u1eefng v\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, trang 13-22)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

\nNghiên c\u1ee9u \u0111a d\u1ea1ng di truy\u1ec1n gi\u1eefa 100 cá th\u1ec3 vô tính Keo lá tràm tr\u1ed3ng \u1edf \u0110ông Nam b\u1ed9 \u0111ã \u0111\u01b0\u1ee3c ti\u1ebfn hành b\u1eb1ng 33 c\u1eb7p m\u1ed3i SSR và 12 m\u1ed3i RAPD. K\u1ebft qu\u1ea3 cho th\u1ea5y bi\u1ebfn \u0111\u1ed9ng di truy\u1ec1n gi\u1eefa các cá th\u1ec3 là th\u1ea5p. K\u1ebft qu\u1ea3 phân tích b\u1eb1ng các m\u1ed3i RAPD và SSR b\u1eb1ng ph\u1ea7n m\u1ec1m POPGENE cho th\u1ea5y các cá th\u1ec3 nghiên c\u1ee9u có th\u1ec3 \u0111\u01b0\u1ee3c chia thành 2 nhóm. Nhóm 1 g\u1ed3m cá th\u1ec3 s\u1ed1 70 và 71 (QLD). Nhóm 2 g\u1ed3m 98 cá th\u1ec3 còn l\u1ea1i. Trong nhóm 2 l\u1ea1i \u0111\u01b0\u1ee3c chia thành 2 nhóm ph\u1ee5. Các cá th\u1ec3 có ngu\u1ed3n g\u1ed1c t\u1eeb Queensland n\u1eb1m trong nhóm 1 và nhóm ph\u1ee5 2b, trong khi các cá th\u1ec3 có ngu\u1ed3n g\u1ed1c t\u1eeb Thái Lan n\u1eb1m trong nhóm ph\u1ee5 2a. Các cá th\u1ec3 43, 44, 57 và 58 có ch\u1ec9 s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed3ng th\u1ea5p l\u1ea1i \u0111\u01b0\u1ee3c ghi nh\u1eadn t\u0103ng tr\u01b0\u1edfng t\u1ed1t có th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn làm v\u1eadt li\u1ec7u lai t\u1ea1o. <\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9493"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9493"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9493\/revisions"}],"predecessor-version":[{"id":10947,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9493\/revisions\/10947"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}